FCC ID: 2ANOG-A98XX Wireless Smart Audio Module

Linkplay Wireless Smart Audio Module (A98) User Manual Revision 0.6 July 31, 2019 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 HISTORY Version Date Description 05/04/2018 Initial Version Release 09/13/2018 Hardware Parameter Update 03/27/2019 Hardware Interface and Mechanical Dimension Update 05/11/2019 Update Dimension 06/11/2019 Update Dimension and Package 07/30/2019 Add I/O Power Domain Information 0.1 0.2 0.3 0.4 0.5 0.6 Document No.: WMB20180504 Page 2 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 INDEX 1.1. 1. Overview ............................................................................................................................................................. 4 Parameter ................................................................................................................................................. 5 2. Hardware Description .......................................................................................................................................... 9 2.1. Description of Hardware Interface .......................................................................................................... 9 2.2. Mechanical Dimension .......................................................................................................................... 12 External Antenna ................................................................................................................................... 14 2.3. Typical Application ................................................................................................................................ 15 2.4. Power on Sequence ................................................................................................................................ 17 2.5. 2.6 USB OTG Port ....................................................................................................................................... 17 3. Software Introduction ........................................................................................................................................ 18 3.1. Feature List ............................................................................................................................................ 18 3.2. APP Support .......................................................................................................................................... 18 3.3. Certifications.......................................................................................................................................... 19 4. Module Environmental and Package ................................................................................................................. 19 Environmental Ratings .......................................................................................................................... 19 4.1. 4.2. Electrostatic Discharge Specifications ................................................................................................... 19 4.3. A98 Module Picture ............................................................................................................................... 20 4.4. Sticker Specification .............................................................................................................................. 20 Document No.: WMB20180504 Page 3 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 1. Overview Linkplay Wireless Smart Audio moduleA98, is our 3rd generation smart audio modules developed to be used in the connected speaker, sound bar and other connected audio devices. It integrates the low power Broadcom BCM43455 Wi-Fi/BT chip and Amlogic A113X application processor. A113X is an advanced application processor designed for connected audio applications. It integrates a powerful CPU subsystem, advanced multi-format audio processing unit, a secured running environment and all major peripherals to form the low power audio AP. The main system CPU is a quad-core ARM Cortex-A53 CPU with L1 instruction/data cache for each core and a large unified L2 cache to improve system performance. Each Cortex-A53 CPU can run up to 1.5GHz (DVFS +

hot plug) and has a wide bus connecting to the memory sub-system. When the system is suspended, the main CPU can be powered off and the cortex-M3 in the always-on power domain can resume the system from multiple interrupt sources. The audio processing engine (APE) is based on ARM NEONTM general-purpose SIMD architecture which works seamlessly with main CPU to accelerate the multimedia processing algorithms, enhancing the user experience. It is able to decode all major high resolution audio formats including MP3, AAC, WMA, RM, FLAC, Ogg, etc and with the flexibility to support future audio standards. A113X integrates all standard audio input/output interfaces including multiple TDM, PCM, I2S and SPDIF digital audio input/output interfaces, and 8 channel far-field PDM digital microphone (DMIC) inputs. Audio input has power detector to wake up from low activity states and hardware assisted synchronization blocks for multiple room audio applications. Audio input data can be restricted to trusted memory space to protect always-on audio privacy. A98 module supports IEEE 802.11 a/b/g/n/ac 2.4GHz and 5GHz. It also supports BT4.2 with EDR and BLE. A98 module also provides USB, I2S, I2C, PDM, SPI, UART etc. interfaces. The firmware is fully compatible with Apple AirPlay and digital living network alliance (DLNA) streaming standards. It supports Hi-Fi audio up to 192KHz, 24-bit with most popular audio formats. It supports multi-room and multi-channel audio streaming with perfect synchronization. With this module, you can play the music on your speaker wirelessly from iPhone, iPad , iPod touch, Android devices or PC. More important, it enables the traditional speaker system to become the Internet enabled device through the wired or wireless connection provided by the module. Thus, you could freely playback any Internet audio contents such as music, podcast, radio or either the accompany audio in the movie directly from the Internet. Features Amlogic A113X application processor 128MB DRAM 128MB NAND FLASH Support IEEE 802.11 a/b/g/n/ac 1x1 antenna diversity Wi-Fi dual band Support BT4.2 with EDR and BLE Application Connected speaker, Sound Bar Connected audio devices Document No.: WMB20180504 Page 4 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 1.1. Parameter Type Wi-Fi Items Certification WLAN Standard Frequency Range Number of Channels Modulation Output Power SISO Receive Sensitivity

(11b,20MHz) @8% PER Wi-Fi (2.4G) SISO Receive Sensitivity

(11g,20MHz) @10% PER Receive Sensitivity

(11n,20MHz) @10% PER Maximum Input Level Antenna Reference WLAN Standard Frequency Range Number of Channels Modulation Wi-Fi (5G) Performance Wi-Fi Alliance IEEE 802.11 a/b/g/n/ac Wi-Fi compliant 2.400 GHz ~ 2.483 GHz (2.4 GHz ISM Band) Ch1 ~ Ch13 802.11b : DQPSK, DBPSK, CCK 802.11g/n : OFDM /64-QAM,16-QAM, QPSK, BPSK 802.11b /11Mbps : 16 dBm 1.5 dB @ EVM-9dB 802.11g /54Mbps : 15 dBm 1.5 dB @ EVM-25dB 802.11n /MCS7@HT20 : 14 dBm 1.5 dB @

EVM-27dB

- 1Mbps PER @ -96 dBm, 2 dB

- 2Mbps PER @ -90 dBm, 2 dB

- 5.5Mbps PER @ -88 dBm, 2 dB

- 11Mbps PER @ -86 dBm, 2 dB

- 6Mbps PER @ -90 dBm, 2 dB

- 9Mbps PER @ -88 dBm, 2 dB

- 12Mbps PER @ -87 dBm, 2 dB

- 18Mbps PER @ -85 dBm, 2 dB

- 24Mbps PER @ -83 dBm, 2 dB

- 36Mbps PER @ -80 dBm, 2 dB

- 48Mbps PER @ -76 dBm, 2 dB

- 54Mbps PER @ -73 dBm, 2 dB

- MCS=0 PER @ -89 dBm, 2 dB

- MCS=1 PER @ -85 dBm, 2 dB

- MCS=2 PER @ -84 dBm, 2 dB

- MCS=3 PER @ -80 dBm, 2 dB

- MCS=4 PER @ -77 dBm, 2 dB

- MCS=5 PER @ -75 dBm, 2 dB

- MCS=6 PER @ -72 dBm, 2 dB

- MCS=7 PER @ -70 dBm, 2 dB 802.11b : -10 dBm 802.11g/n : -20 dBm External: I-PEX, Small antennas with 0~2 dBi peak gain IEEE 802.11a/n 2x2, Wi-Fi compliant 4.900 GHz ~ 5.845 GHz (5.0 GHz ISM Band) Please see the following table 802.11a : OFDM /64-QAM,16-QAM, QPSK, BPSK Document No.: WMB20180504 Page 5 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 802.11n : OFDM /64-QAM,16-QAM, QPSK, BPSK 802.11ac : OFDM /256-QAM 802.11a /64-QAM(R=3/4) : 14 dBm 2 dB @

EVM-25dB 802.11n /64-QAM(R=5/6) : 13 dBm 2 dB @

EVM-27dB 802.11ac/256-QAM(R=3/4) : 12 dBm 2 dB @

EVM-30dB 802.11ac/256-QAM(R=5/6) : 10 dBm 2 dB @

EVM-32dB

- 6Mbps PER @ -90 dBm, 2 dB

- 9Mbps PER @ -88 dBm, 2 dB

- 12Mbps PER @ -87 dBm, 2 dB

- 18Mbps PER @ -85 dBm, 2 dB

- 24Mbps PER @ -81 dBm, 2 dB

- 36Mbps PER @ -78 dBm, 2 dB

- 48Mbps PER @ -73 dBm, 2 dB

- 54Mbps PER @ -72 dBm, 2 dB

- MCS=0 PER @ -89 dBm, 2 dB

- MCS=1 PER @ -87 dBm, 2 dB

- MCS=2 PER @ -84 dBm, 2 dB

- MCS=3 PER @ -81 dBm, 2 dB

- MCS=4 PER @ -77 dBm, 2 dB

- MCS=5 PER @ -73 dBm, 2 dB

- MCS=6 PER @ -71 dBm, 2 dB

- MCS=7 PER @ -70 dBm, 2 dB

- MCS=0 PER @ -87 dBm, 2 dB

- MCS=1 PER @ -84 dBm, 2 dB

- MCS=2 PER @ -82 dBm, 2 dB

- MCS=3 PER @ -78 dBm, 2 dB

- MCS=4 PER @ -75 dBm, 2 dB

- MCS=5 PER @ -70 dBm, 2 dB

- MCS=6 PER @ -69 dBm, 2 dB

- MCS=7 PER @ -67 dBm, 2 dB

- MCS=0 PER @ -88 dBm, 2 dB

- MCS=1 PER @ -86 dBm, 2 dB

- MCS=2 PER @ -83 dBm, 2 dB

- MCS=3 PER @ -80 dBm, 2 dB

- MCS=4 PER @ -76dBm, 2 dB

- MCS=5 PER @ -72 dBm, 2 dB

- MCS=6 PER @ -70 dBm, 2 dB Output Power SISO Receive Sensitivity

(11a,20MHz) @10% PER SISO Receive Sensitivity

(11n,20MHz) @10% PER Receive Sensitivity

(11n,40MHz) @10% PER Receive Sensitivity

(11ac,20MHz) @10% PER Document No.: WMB20180504 Page 6 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6

- MCS=7 PER @ -69 dBm, 2 dB

- MCS=8 PER @ -65 dBm, 2 dB

- MCS=0 PER @ -86 dBm, 2 dB

- MCS=1 PER @ -82 dBm, 2 dB

- MCS=2 PER @ -80 dBm, 2 dB

- MCS=3 PER @ -77 dBm, 2 dB

- MCS=4 PER @ -74 dBm, 2 dB

- MCS=5 PER @ -69 dBm, 2 dB

- MCS=6 PER @ -67 dBm, 2 dB

- MCS=7 PER @ -65 dBm, 2 dB

- MCS=8 PER @ -63 dBm, 2 dB

- MCS=9 PER @ -62 dBm, 2 dB

- MCS=0 PER @ -82 dBm, 2 dB

- MCS=1 PER @ -79 dBm, 2 dB

- MCS=2 PER @ -77 dBm, 2 dB

- MCS=3 PER @ -73 dBm, 2 dB

- MCS=4 PER @ -70 dBm, 2 dB

- MCS=5 PER @ -68 dBm, 2 dB

- MCS=6 PER @ -64 dBm, 2 dB

- MCS=7 PER @ -62 dBm, 2 dB

- MCS=8 PER @ -59 dBm, 2 dB

- MCS=9 PER @ -58 dBm, 2 dB 802.11a/n : -30 dBm External: I-PEX, Small antennas with 0~2 dBi peak gain BQB Bluetooth V4.2 of 1, 2 and 3 Mbps External: I-PEX, Small antennas with 0~2 dBi peak gain 2402 MHz ~ 2480 MHz 79 channels FHSS, GFSK, DPSK, DQPSK 10 dBm (Max.)

-86 dBm, typical

-86 dBm, typical

-80 dBm, typical GFSK (1Mbps): -20dBm

/4-DQPSK (2Mbps) : -20dBm Receive Sensitivity

(11ac,40MHz) @10% PER Receive Sensitivity

(11ac,80MHz) @10% PER Maximum Input Level Antenna Reference Certification Bluetooth Standard Antenna Reference Frequency Band Number of Channels Modulation Output Power

(Output power can be configured by HCD firmware) Sensitivity @ BER=0.1%

for GFSK (1Mbps) Sensitivity @ BER=0.01%

for /4-DQPSK (2Mbps) Sensitivity @ BER=0.01%

for 8DPSK (3Mbps) Maximum Input Level Bluetooth Document No.: WMB20180504 Page 7 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Hardware Working Voltage Working Current Standby Current Operating Ambient Temperature Storage Temperature Wi-Fi Working Distance IO Extension Dimension 8DPSK (3Mbps) : -20dBm 3.5-5.5V 200 ~ 240mA (STA mode) 5mA 0 ~ 40

-5 ~ 45 2.4G 80 meters/5G 150meters USB, I2S, I2C, PWM, SPI, UART NGFF golden finger 67PIN Table1-1 Linkplay A98 module parameters 5GHz(20MHz) Channel table Band (GHz) Operating Channel Numbers Channel Center Frequencies(MHz) 5.15GHz~5.25GHz 5.25GHz~5.35GHz 5.5GHz~5.7GHz 5.725GHz~5.845GHz 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700 5745 5765 5785 5805 5825 Document No.: WMB20180504 Page 8 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet 2. Hardware Description 2.1. Description of Hardware Interface Number Version WMB20180504 0.6 A98 provides the option to connect with customer board through its 67-pins NGFF golden finger. The detail is as follows. Document No.: WMB20180504 Page 9 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Pin Description:

Figure 2-1 A98 Interface Pins Pin Name Type Description Power Domain GND Supply Digital ground GND Pin No. 1, 3, 5, 16, 23, 25, 27, 28, 34, 46, 50, 53, 54, 58, 63, 64, 74, 75 246 VDD_5V GPIOZ_7 I2C1_SCL I2C1_SDA GPIOZ_3 GPIOZ_6 PWM_B PWM_D PWMAO_C 7 17 19 21 29 31 33 35 Power I/O I/O I/O I/O I/O O O O Power supply input > 800mA General purpose input output I2C bus1 clock I2C bus1 data General purpose input output General purpose input output Pulse Width Modulation B Pulse Width Modulation C Pulse Width Modulation AO_C 3.5 - 5.5V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V Document No.: WMB20180504 Page 10 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 37 39 41 43 45 47 49 51 55 57 59 61 65 67 69 71 73 18 20 22 24 26 30 32 36 38 40 42 44 48 52 56 60 62 66 68 70 72 PWMAO_D UART0_RXD UART0_TXD GPIOAO_7 GPIOAO_6 PWMAO_A I2C0_SDA I2C0_SCL GPIOA_19 ADC_CH0 MCLK_C GPIOAO_13 GPIOA_20 USB_DM USB_DP USB_VBUS USB_ID GPIOZ_5 GPIOZ_1 GPIOZ_0 PWM_C GPIOZ_2 UART1_RXD UART1_TXD PDM_DIN3 PDM_DIN1 PDM_DIN2 PDM_DCLK PDM_DIN0 TDMB_DIO1 TDMB_SCLK TDMB_DIO0 TDMB_FS TDMC_DIO1 TDMC_DIO0 TDMC_FS TDMC_SCLK MCLK_B Notes:

1. IInput Pulse Width Modulation AO_D UART0 receive UART0 transmit General purpose input output General purpose input output Pulse Width Modulation AO_A I2C0 bus data I2C0 bus clock General purpose input output O I O I/O I/O O I/O I/O I/O I/IPU ADC input O I/O I/O I/O I/O I I I/O I/O I/O I/O I/O I O I I I O I I/O I/O I/O I/O I/O I/O I/O I/O O Master clock C General purpose input output General purpose input output USB data minus USB data plus USB voltage detection USB ID General purpose input output General purpose input output General purpose input output Pulse Width Modulation C General purpose input output UART1 receive UART1 transmit PDM input data 3 signal PDM input data 1 signal PDM input data 2 signal PDM output clock PDM input data 0 signal TDM B input and output data1 TDM B bit clock TDM B input and output data0 TDM B L/R clock TDM C input and output data1 TDM C input and output data0 TDM C L/R clock TDM C bit clock Master clock B Table 2-1 A98 Module Pin Description 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 1.8V 3.3V 3.3V 3.3V 3.3V 3.3V 5V 1.8V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V Document No.: WMB20180504 Page 11 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 2. OOutput 3. PPower 4. 5. IPUInternal Pull Up IPDInternal Pull Down 2.2. Mechanical Dimension Linkplay A98 module has the dimension of 62.8mm x 42mm. The detailed layout will be given shortly below. Unit: mm PLUG PCB dimensions:

NGFF connector dimensions:

Top View Dimension Document No.: WMB20180504 Page 12 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 TOP Components Height Limit Document No.: WMB20180504 Page 13 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Bottom Components Height Limit Number Version WMB20180504 0.6 Figure 2-2 A98 Physical Dimension 2.3. External Antenna A98 uses the external antenna for the best Wi-Fi performance. To use external antenna, please choose the antenna type that meets the requirement of IEEE 802 a/b/g/n/ac Wi-Fi standard running at 2.4GHz/5GHz frequency. The detailed parameters are shown in the table below. Item Frequency range Impedance VSWR Reflection loss Connector Parameter 2.4 ~ 2.5GHz/4.9 ~ 5.8GHz 50 Ohm 2 (Max.)

-10dB (Max.) I-PEX or populate directly Table 2-5 External Antenna Parameters for A98 Document No.: WMB20180504 Page 14 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 2.4. Typical Application A98s typical reference design:

DAC 2/4/6-MIC Far-Field Document No.: WMB20180504 Page 15 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Power and OTG Document No.: WMB20180504 Page 16 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 2.5. Power on Sequence 2.6 USB OTG Port Please follow the design rule below to populate the USB host interface:

Item Signal Group Topology Reference Plane Characteristic Trace Impedance (Zo) Trace Width Serpentine Spacing (center to center) Parameter USB Differential Pair Point-to-Point Ground Referenced 90 10%

4 mils 8.5 mils Document No.: WMB20180504 Page 17 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Minimum Isolation Spacing to Clock Signals Minimum Isolation Spacing to Low-Speed Signals Minimum Isolation Spacing to other USB Pair Total Length (with package length) Maximum Recommended Via Count DM to DP Length Matching (with package length) Match total length to within 10 mils 50 mils 20 mils 20 mils

< 8000 mils 2 (per side) Table 2-2 A98 USB Design Rule 3. Software Introduction 3.1. Feature List Easy Setup to setup your network, with the help of one button of your device, you can connect the device to your home router quickly. Music stream protocol Support Spotify Connect, Airplay, DLNA and QPlay protocol Amazon Alexa Music content Support iHeartRadio, Napster/Rhapsody, Tidal, Deezer, vTune, Qobuz, Audible, Radio.de, NPRXimalaya Qingting FM, QQ FM, Douban FM inside, with the help of App, you can search, stream, playback and preset the musics of the above music services. Multiroom Support multiroom. Support Airplay, Spotify, Bluetooth, Aux-in multiroom playback. Music format HTTP/HTTPS/RTSP/MMS/TS protocol HLS/ASX/M3U playlist format MP3/AAC/FLAC/ALAC/WMA/APE/OGG codec BT Support 4.2A2DP, AVRCP, HFP, HID profiles Support BLE Support EDR Preset With the help of App, you can store the music account token and playlist in the A98. Then the end user can play the playlist by the button/voice or timer even without the App. 3.2. APP Support iOS App iOS6.1suggest iOS10 and above Document No.: WMB20180504 Page 18 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Android APP Android 4.3.3 Quick Customization With the help of the Linkplay compile server, you can change the brand and some strings, change the logo and some pictures to get a customization App. 3.3. Certifications Linkplay can help you to finish follow certifications:

Wi-Fi Logo BQB Amazon Alexa MFi DLNA Qplay Spotify Connect 4. Module Environmental and Package 4.1. Environmental Ratings The environmental ratings are shown as following table. Characteristic Storage Temperature Relative humidity Value Units Conditions/CommentsA

-5 ~ 45 Less than 60 Less than 80

%

%

Storage Operation 4.2. Electrostatic Discharge Specifications Extreme caution must be exercised to prevent electrostatic discharge (ESD) damage. Proper use of wrist and heel grounding straps to discharge static electricity is required when handling these devices. Always store unused material in its antistatic packaging. ESD Specifications Type Symbol Condition ESD Rating Unit ESD Handling ESD_HAND_HBM Human Body Model Contact Discharge per JEDEC EID/JESD22-A114 Machine Model

(MM) ESD_HAND_MM Machine Model Contact 1000 30 V V Document No.: WMB20180504 Page 19 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 CDM ESD_HAND_CDM Charged Device Model Contact Discharge per JEDEC EIA/JESD22-C101 300 V 4.3. A98 Module Picture Notes:

Linkplay: Linkplay logo A98: module number V01: MP version of A98 module 4.4. Sticker Specification Notes:

Line 1. Model NameAP6355SD Line 2. Lot Code (Tracking No.)Coding by 98P Manufacture order, 8 characters in total. Line 3. Date CodeYYWW, 4 characters in total base on week of testing Line 4. Wi-Fi MAC, CODE SYMBOLOGYdata matrix, Configuration by Manufacture order. Line 5. Wi-Fi MAC, 12 characters, Configuration by Manufacture order. Sticker size10mm*9mmHigh temperature sticker 1) Delivery Document No.: WMB20180504 Page 20 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Notes:

One tray = 69pcs 1 box in total 4*69 pcs= 276 pcs Carton with the size= 350*260*270 mm Document No.: WMB20180504 Page 21 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet Number Version WMB20180504 0.6 Single Module FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device. FCC Radiation Exposure Statement This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following:

Contains Transmitter Module FCC ID: 2ANOG-A98XX Or Contains FCC ID: 2ANOG-A98XX When the module is installed inside another device, the user manual of the host must contain below warning statements;

1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. Any company of the host device which install this modular with Single modular approval should perform the test of radiated emissionand spurious emission according to FCC part 15C : 15.247 and 15.407 requirement,Only if the test result comply with FCC part 15C : 15.247 and 15.407 requirementthen the host can be sold legally. Document No.: WMB20180504 Page 22 of 23 Doc Title Wireless Smart Audio Module-A98 Datasheet The module complies with FCC Part 15.247/ Part 15.407 Number Version WMB20180504 0.6 Document No.: WMB20180504 Page 23 of 23

Report No. : EED32L00167705 Page 147 of 153 PHOTOGRAPHS OF EUT Constructional Details Test model No.: A98 View of Product-1 View of Product-2 Report No. : EED32L00167705 Page 148 of 153 View of Product-3 View of Product-4 Report No. : EED32L00167705 Page 149 of 153 View of Product-5 View of Product-6

HOST LABELLING - SPEAKER TRUNK PM Label of the equipment Emplacement of the label HOST LABELLING - SPEAKER TRUNK GM Label GI0526 Label GI0529 Label GI0530 Emplacement of the label

Linkplay Technology Inc. 8F-8036, Qianren Building, No.7, Yingcui Road, Jiangning District Nanjing 211100 CHINA To:

Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046-1609 Curtis-Straus LLC TCB One Distribution Center Circle, #1 Littleton, MA 02702 Date: 2021.10.03 Gentlemen:

The change filed under this application is:

1. Introduction of antennas:

Host equipement: Speaker Trunk PM:

This letter is a request to apply for a Class II Permissive Change for the Linkplay Technology Inc., FCC ID: 2ANOG-A98XX. o Antennas Clutch: FPCB Antenna + coaxial 130 mm and FPCB Antenna + coaxial 230 mm Host equipement: Speaker Trunk GM:

o Antennas Home: FPCB Antenna + coaxial 130 mm and FPCB Antenna + coaxial 390 mm Host equipement with Antennas Clutch :

Speaker Trunk PM Host equipement with Antennas Home:

Speaker Trunk GM Antennas Clutch Antennas Home 2. Addressing SAR requirements with module with Clutch antennas installed into a host device. The host device is a Speaker Trunk PM. The device will be body worn. No hardware or software modifications of the equipment have been performed. Sincerely, Hardware Manager, Cunxue WANG

Linkplay Technology Inc. 8F-8036, Qianren Building, No.7, Yingcui Road, Jiangning District Nanjing 211100 China To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046-1609 Date: 09-27-2020 To Whom It May Concern:

Ladies and Gentlemen:

We, the undersigned, hereby authorize LCIE Bureau Veritas to act on our behalf in all matters relating to application for equipment authorization FCC ID: ZANOG-AZOXAA including the signing of all documents related to this matter. Any and all acts carried out by LCIE Bureau Veritas on our behalf shall have the same effect as acts of our Own. We also hereby certify that no party to this application is subject to a denial of benefits including FCC benefits, pursuant to Section 5301 of Anti-drug Abuse Act of 1988, 21 U.S.C 862. Sincerely, Hardware Manager CupzyQ_ =

2019.09.27

Linkplay-Technology Inc. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: August 14, 2019 SUBJECT: FCC Application for (FCC ID: 2ANOG-A98XX) To Whom It May Concern:

We, the undersigned, hereby authorize Jelly Hsieh at Centre Testing International Group Co., Ltd / Building C, Hongwei Industrial Park Block 70, Bao'an District, Shenzhen, China on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Jelly Hsieh at Centre Testing International Group Co., Ltd /

Building C, Hongwei Industrial Park Block 70, Bao'an District, Shenzhen, China on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Signature: (Capkv Woy printed name: Cunxue wang EAS A98\A98 HAL il PSHE ABCC POA Letter_A98.doex

Linkplay Technology Inc. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2ANOG-A98XX Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type File Name

(Block Diagram, Schematics, Operational (Block Diagram.pdf, Schematics.pdf, Description) Operational Description.pdf) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type File Name Sincerely, Signature: Cunylue Wh Printed name: Cunxue wang Rev 11/20/07

Linkplay Technology Inc. FCC ID: 2ANOG-A98XX MODULAR APPROVAL LETTER Modular Approval Requirement Yes No

(i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements.

(ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation.

(iii) The modular transmitter must have its own power supply

| regulation. a

(iv) The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler

(at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section.

(v) The modular transmitter must be tested in a stand-alone configuration

(vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. a

(vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the moduie to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization.

(viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Signature: Cun Bus Weng Printed name: Cunxue wang E:\S A98\A98 APIBLAL ES FA \ SEG = AB Modular Approval Letter_A98.docx