Bluetooth Transmitter & Receiver User Manual Model:I3 Contents:
1. Product Overview-------------------------------------------------------------- 2 2. Basic Operation --------------------------------------------------------------- 3 3. How to use as a Bluetooth Transmitter (TX)---------------------------------- 4 4. How to use as a Bluetooth Receiver (RX)------------------------------------ 7 5. How to use BYPASS function--------------------------------------------------10 6. LED Indicator -----------------------------------------------------------------11 7. Product Specification----------------------------------------------------------12 8. Attention and Q & A----------------------------------------------------------13 1. Product Overview USB DC Power Supply Port / AUX Output Port / SPDIF Output Port / SPDIF Iinput Port / AUX Input Port Working Status Switch/ Working Status Indicator / Audio Mode Indicator / Connected Device Indicator / CODEC Indicator / Multi Function Button(MFB) / Audio Mode Switch / Volume - /
Volume +
Package Contents A. Bluetooth Transmitter & Receiver *1 B. 3.5mm Audio Cable *1 C. Micro USB Charging Cable *1 D. User Manual *1 E. Fiber Optic Cable *1 2. Basic Operation Button Function Operation Pairing mode Double press when in standby or connected status.
(Not work in Multi Point Connection) MFB (Multi Function Button) Play / Pause (RX) Short press when playing music
*Not work in TX mode aptX HD on /
off (TX / RX) Under power on status, long press for 7 seconds Volume + (RX) Short press Next song (RX) Long press for 1 second Volume - (RX) Short press song Long press for 1 second Previous
(RX) Switch to RX side for receive status, switch to TX side for transmit status, switch to BYPASS for direct connection status. Short press to switch between AUX and Optical. Volume +
Volume -
Working Status Switch Audio Mode Switch 3. How to use as a Bluetooth Transmitter (TX) 3.1 Bluetooth pairing and connection A. Plug USB DC power supply to power on, switch to TX status. Or switch to TX status then power on. B. It will enter pairing status automatically with TX LED fast flash (You could double press MFB to enter pairing mode if it didnt enter). C. Turn on the Bluetooth function of your device (bluetooth headphone, speaker or receiver) to pairing mode with Red & Blue LED flash alternately or Blue LED flash. D. Place KH21 and the device close and wait for 5-30 seconds, after successful connection, KH21 turn to solid TX LED , solid A LED, and solid CODEC LED , please refer to Point 6. E. Connect KH21 with phone or TV through 3.5mm audio cable or fiber optic cable, the music can be heard from headphone or speaker. 1 Setting Under power off status switch to TX side then plug power supply cable to power on, or under power on status switch to TX side. 2 Paring Power on, you could double press MFB if it didnt enter pairing status automatically with TX LED fast flash. Place bluetooth headphone or speaker power on and enter pairing status. 3 Connection Place them close and wait for 5-30 seconds, after successful connection, KH21s CODEC LED turn on. 3.2 Multi Point Connection AFollow 3.1 to connect with the first device, double press MFB button to enter into pairing mode with TX LED fast flash (The first connected device will work well). B. Turn on the second device (bluetooth headphone, speaker or receiver) enter into pairing mode, place it close with KH21 and wait for 5-30 seconds, KH21 will connect two device with A B solid Blue LED (The first device will have music issue when connect to second device, then it will be fine after few seconds). Note
*If KH21 can not connect two devices, please power on again and try to reconnect, or try to pair two devices again.
*Multi Point Connection can be compatible with most of bluetooth device, but there are some devices maybe have some problem when connect with it. 3.3 TV Connection Connect KH21 and the TV with 3.5mm audio cable or fiber optic cable, and Bluetooth connect with headphone or spkeaer, play music from TV to headphone or speaker. Notes
*Please test the TV with wired headphone by selecting 3.5mm output to check the TV's audio settings to make sure the devices connect in the right way and play audio from the TV.
*If bluetooth headphone can not hear sound from TV, please check the TV audio setting, normally can output sound one of them or all: fiber optic, 3.5mm, tv speaker.
*Please insert fiber optic cable to TX-Input-OPTICAL port , insert 3.5 mm audio cable to TX-Input-AUX port. 4. How to use as a Bluetooth Receiver (RX) 4.1 Bluetooth pairing and connection AConnect USB DC power supply to power on, switch to RX status. Or switch to RX status then power on. BIt will enter pairing status automatically with RX LED fast flash (You could double press MFB to enter pairing mode if it didnt enter). CPlace KH21 and your phone (PC or tablet) close, turn on bluetooth function then search and connect BT-BA002. The RX LED will turn on, meanwhile A and CODEC LED also turn on, please refer to Point 6. DAfter successful connection, the speaker can be played music from phone
(PC or tablet) with 3.5mm audio cable or fiber optic cable connect to KH21. 1 Setting Under power off status, switch to RX then plug power supply cable to power on. Or under power on status switch to RX side. 2 Pairing Please double press MFB to enter pairing status with RX LED fast flash if didnt enter pair status. 3 Connection Turn on the bluetooth function of phone (PC or tablet), search and connect KH21. After successful connection, KH21s RX and CODEC LED will turn to solid. 4.2 Multi Point Connection A. Follow 4.1 to connect with the first phone (PC or tablet). B. Double press KH21s MFB to enter pair status with RX LED fast flash (The first connected device will work well). C. Turn on the bluetooth function of the second phone (PC or tablet), search and connect KH21s pair name. Multi point connection is working with A B LED turn on. Note
*Only could play music from one phone when with two connections. Need to stop the first ones music then to play the other ones music. 4.3 Speaker Connection Connect KH21 and Speaker with 3.5 mm audio cable or fiber optic cable, and bluetooth connect with phone (PC, laptop), play music from your phone to speaker. Notes
*Please test the speaker with 3.5 mm audio cable (connect with phone) to see if workable, if could not play when connect with KH21.
*Please insert fiber optic cable to RX-Output-OPTICAL for Toslink connection, RX-
Output-AUX for 3.5mm connection. 5How to use BYPASS function Enter BYPASS: Plug DC power supply, switch to BYPASS status with solid BYPASS LED. BYPASS mode is direct connection, short press Audio Mode Switch to select between AUX and OPT. 1. Solid AUX LED : AUX-Input to AUX-Output 2. Solid OPT LED: OPT-Input to OPT-Output 3. AUX LED flash once, then turn to solid AUX and OPT LED: AUX-Input to OPT-
Output 4. OPT LED flash once, then turn to solid OPT and AUX LED: OPT-Input to AUX-
Output 6. LED Indicator Status Power on Power off Paring LED Indicator TX flash twice (TX status) RX flash twice (TX status) All turn off TX fast flash (TX status) TX fast flash (RX status) Unconnected standby /
Reconnecting TX flash once every 3 seconds (TX status) RX flash once every 3 seconds (RX status) Connected with once device A turn on aptX-HD on aptX-HD off TX is on for 1.5 seconds (TX / RX status) TX flash twice (TX / RX status) Connected with two devices A and B turn on Connected working status aptX HD aptX low latency aptX SBC HD turn on LL turn on APTX turn on N/A 7. Product Specification Bluetooth version Bluetooth chipset Operation range Bluetooth profile V5.0 CSR 8675 RX: 15 meters, TX: 50 meters A2DP, AVRCP CODEC aptX HD, aptX low latency, aptX , SBC Working temperature Net weight dimension
-10-55 About 81.5g 132*75*29MM 7. Attention and Q & A A. How to reconnect?
A: KH21 will reconnect with paired devices when power on. If not , please follow the 3.1 or 4.1 to pair & connect again. B . How to delete the paired records?
A: Under TX and power on status, long press Volume + 7 seconds to delete the paired records, TX and RX will flash twice simultaneously (Not work in RX status). C . Password for connect?
A: Please enter 0000 (four zero), 8888 (four eight), 1111 (four one), or 1234 (one, two, three, four) for some devices which need password to connect D. Could not power on or dead when connect?
A: Please plug power supply again. E. How to do if cant connect?
A: Please try delete the paired records of KH21 and the other devices F. How to turn on / off aptX-HD?
A: Under power on status, long press MFB for 7 seconds turn on / off HD mode
(KH21 will reset and power on then reconnect the devices) 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. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.