FCC ID: 2AUDF-DB2 Smart Battery Video Doorbell

www.a4x.io Smart Battery Video Doorbell User Instructions Table of contents Whats included Get to know your doorbell Doorbell front view Functional views Chime front view Chime rear view Set up your doorbell Downloading and installing the app Doorbell binding Doorbell sharing Power on/off & Network configuration Connecting the chime Charging your doorbell 1 2 2 3 4 4 5 5 6 8 9 9 12 Installation Choose the right place to install Wireless installation Installing at an angle(optional) Detach and alarm 13 13 18 21 24 Product specifications 25 LED indicator explanation Video doorbell specifications Wireless chime specifications Firmware upgrade 25 26 27 28 FAQ and troubleshooting 28 Whats included Doorbell chime Doorbell Flat mounting bracket 3M tape USB cable Wall screw

(wall anchor) Wedge screw Removal pin Note Micro SD card and power adapter are not included 1 User Instructions Get to know your doorbell Get to know your doorbell Doorbell front view Lens Speaker Human body infrared sensor Doorbell button Removal hole Infrared light Microphone Indicator light 2 User Instructions Functional views Get to know your doorbell Right side Functional views P V 5

C D Bottom side Functional views Reboot hole Micro-USB port Power button Micro-SD card slot 3 User Instructions Get to know your doorbell Chime front view Chime rear view Indicator light Ringtone selection key Speaker USB port

SYNC" key 4 User Instructions Set up your doorbell Set up your doorbell Downloading and installing the app The doorbell can be connected to and operated through smart phones running on Android and iOS platforms. For your best experience, please scan the QR code below, download and install the latest version app and follow the prompts to complete user registration. 5 User Instructions Set up your doorbell Doorbell binding 1) Click the "Add Now" button in the app, press and hold the doorbell switch button for 3 seconds to turn on the doorbell, and the app will automatically search for devices that are on and not bound. Select the device you want to bind in the search results for the next step. 2) Enter the name and password of the Wi-Fi network you want the doorbell to connect to. Click Next after completion, and the app will try to connect the doorbell to the Wi-Fi. Note To ensure a long-distance connection, the doorbell only supports a 2.4 GHz Wi-Fi network with stronger wall penetration capability and does not support Wi-

Fi with enterprise-level authentication. Please make sure that your Wi-Fi meets the requirements. 6 Wi-Fi Password User Instructions 3) After a while, the doorbell will play a sound indicating that the connection is successful. At this point, please set a name for the doorbell on the app and select the location where you want to place the doorbell. Click Finish to complete the pairing. Set up your doorbell Possible problems with binding When you hear "Password error", check if the Wi-Fi password you entered in the app is correct;

When you hear "Authentication method error", please make sure that your Wi-Fi network is not in an enterprise-level network connection mode, as the doorbell only supports networks with a security level below WPA-2;

When you hear "AP does not exist", please check if you have selected or entered the correct Wi-Fi name. Please place the doorbell near the Wi-Fi router and make sure the router is powered on. Also, please note that 5 GHz Wi-Fi cannot be searched by the doorbell either;

When you hear "IP acquisition timeout", it means that you have too many devices connected to the router and to connect more devices, please delete some infrequently used devices or reboot the router to clear the unconnected doorbell whose lease has expired, and you may need to contact the router administrator;

When you hear "Server connection failed", please check if your router is properly connected to the external network. This is usually the case when your home network is disconnected or the router you choose is a server on the LAN. Please make sure the network connection is normal, and try to connect again by temporarily turning off the firewall. 7 User Instructions Set up your doorbell Doorbell sharing You can use this feature when you need to use the doorbell with other family members or friends. Only the admin user who has bound the doorbell for the first time can share and set up the doorbell, while other members can only view the live video or video playback feature of the doorbell. 1) For admin user of the doorbell, find the doorbell you wish to share on the app homepage or doorbell settings screen, then click the share button and enter the Share page. Click "Device Sharing" to generate a shared QR code. 2) For users who need to be shared with, click "+" on the homepage and select "Add Friend's Device" to enter the scan code page. 3) After the shared user successfully scans the QR code on the admin user's mobile phone, the admin user will receive a confirmation notification, then click Accept to complete the doorbell sharing. 8 User Instructions Power on/off & Network configuration The power button can control the doorbell on/off function or enter the network configuration mode. You need to first remove the doorbell from the bracket before the button can be pressed. Insert and press the detaching pin into the hole on the top of the doorbell and then lift to take the top of the doorbell off. Press and hold the power button for 3 seconds to switch the device on and off. P V 5

C D Double-click the power button on the doorbell that has been powered on and a prompt tone will sound indicating to enter the network configuration mode. Connecting the chime 1) Connecting the doorbell chime with a charger Set up your doorbell Power button Connect the doorbell chime to the power supply of 5V/1A~5V/2A, and the doorbell chime will ring once. 9 User Instructions Set up your doorbell 2) Bringing your doorbell close to the chime 3) Putting the doorbell chime into sync state Move the doorbell within 2 meters of the doorbell Chime, so that the doorbell and the doorbell chime can be paired stably. Press and hold the pairing button on the front of the indoor Ding Dong until you hear a beep.

< 2m/7ft 10 User Instructions 4) Synchronizing the doorbell with the chime 5) Connection Successful Press and hold the doorbell button for 6 seconds, the doorbell will ring twice, send a connection signal, and the doorbell chime will ring. Press the doorbell button for testing. When a chime rings, it indicates that the connection is successful. Set up your doorbell 11 User Instructions Set up your doorbell Note Your doorbell communicates with the chime via Radio Frequency, but not Wi-Fi. You can assign different chimes as needed. If you want to cancel the pairing relationship, you can long press the indoor Dingdong synchronization button for 8s. Charging your doorbell Before the doorbell installation, please charge your doorbell. During the charging process, the yellow indicator light of the doorbell is always on, and then it will become solid green when the charging is completed. It may take about 10 hours to fully charge the doorbell. Note Compatible charger (not included) USB compatible mobile phone charger (DC 5V 1A~2A) 12 V 5

C D User Instructions Installation Installation Choose the right place to install You need The items in the Smart Video Doorbell box Phillips screwdriver

(Optional) power drill 1) Select a location for your video doorbell. Determine the mounting position of the doorbell. Check if you can reuse the existing holes on the wall, if you don't want to drill new holes to mount your video doorbell. It is suggested to mount the doorbell at least 5 feet (150 cm) above the ground for the optimal angle of view and best motion detection performance. 13 User Instructions Installation 5 feet

(150cm) 14 User Instructions Note The doorbell, indoor unit, and router need to be as close as possible (to avoid networking failure due to distance). The doorbell should be installed on non-metallic porches and walls (to avoid signal shielding) or affixed to the wall on the door side. Installation 15 User Instructions Installation 2) If installing on stucco, brick, or concrete, mark 2 drill holes using the doorbell bracket as a template. Then, use a 1/4 masonry drill bit to drill holes in your wall, and insert the included anchors. (If youre installing on a wood surface, skip this step.) 16 User Instructions mounting order Smart Video Doorbell doorbell bracket Angled mounting wedge

(optional) Installation 17 User Instructions Installation Wireless installation 1) Release the bracket from the doorbell with the provided tool. 2) Mark the screw holes and mount the bracket on your wall with screws. wall mount screw kit 18 User Instructions 3) Adhesive tape is provided to mount the bracket on flat surfaces. (Optional Note When mounting the doorbell with 3M adhesive pad, in order to improve the adhesive pad's adhesive effect, please wipe the mounting location to ensure that there is no dirt and dust. when the 3M adhesive pad is attached to the wall, you need to press evenly up and down to ensure that the adhesive pad is fully activated. Installation 19 User Instructions Installation 4) Attach the doorbell to the fixed mounting bracket. 5) All set! Press the doorbell button to run a test. UP 20 User Instructions Install at an angle (optional) You can purchase the following angled brackets to point your doorbell to a specific view angle. Installation Doorbell Bracket Rear View 15 degree angle 10 degree stackable wedge mount unit corner mount

(optional) wedge mount

(optional) doorbell bracket 21 User Instructions Installation Installation steps 22 1) If you have an exsiting doorbell, please remove it. 2) Mark the screw holes and mount the angle bracket on your wall with screws. 3) Mark the screw holes and mount the plane bracket on the angle bracket with screws. 4) After fixing the screws, the installation is completed. User Instructions schematic diagram Installation 23 User Instructions Installation Detach and alarm 1) Anti-theft Tamper Alarm You can also enable the anti-theft alarm in doorbell settings. 2) Tamper Alarm On With the tamper alarm on, your doorbell detects dismounting activities with the button on its back, and then a 30-second siren alarm will be triggered. Meanwhile, video recording will start, and an alarm notification will be pushed to the owners app account. 3) Tamper Alarm Off You can disable the tamper alarm in doorbell settings, and detach the doorbell without triggering any alarm for battery recharge or regular maintenance. 24 User Instructions Product specifications Product specifications LED indicator explanation Mode Working mode Sleep mode Charging mode Charging completed Status Solid blue light Off Solid yellow light Solid green light Network setting up mode Flashing blue light 25 User Instructions Product specifications Video doorbell specifications Item Camera View angle Image resolution Video bitrate Storage medium Battery capacity Adapter requirements Specification 2M Camera FOV 150 1920(H) x 1080(V) Adaptive Micro SD card (up to 128 GB) 5000 mAh 5 V/1.5 A Dimension 1524631 (mm) 26 User Instructions Wireless chime specifications Item Power port Ringtone type Volume Communication protocol Adapter requirements Dimension Specification USB Chord music 80db (Nonadjustable) OOK 5V/1A or 1.5A 644518 (mm) Product specifications 27 User Instructions Firmware upgrade Firmware upgrade When you connect your doorbell via the app, it will automatically detect if there is a new firmware available and prompt for an upgrade. You can also manually detect the firmware upgrade in the app's doorbell settings. Note Please make sure your doorbell is fully charged or connected to the power adapter before the firmware upgrade, and do not turn off your doorbell during the upgrade process. FAQ and troubleshooting Q: Does the doorbell glow red when using its night vision?

A: It has built-in infrared light beads. Only a faint red light can be seen under the night vision mode, and the camera is still clear in a dark environment. Q: What are the requirements for Wi-Fi?

A: Please use a 2.4 GHz wireless network. The doorbell does not support the 5 GHz wireless network. Meanwhile, please set the Wi-Fi authentication method to a security method below wpa2-psk, which requires a password. 28 User Instructions FAQ and troubleshooting Q: How far away from the router should the doorbell be placed?

A: It has been tested that the Wi-Fi connection distance is up to 150 meters in an open environment. The actual situation depends on the Wi-Fi signal strength and the surrounding environment (too thick walls, electromagnetic wave doorbells, and large metal objects can interfere with the Wi-Fi signal). If the doorbell connection signal is weak or unstable, please place the doorbell as close to the router as possible. Q: How can I review videos in a quick and categorized way?

A: Click the icon on the top left corner of the "Library" screen to set filtering conditions, check the conditions and save them to quickly review the video playback by category. Q: What should I do when the doorbell acts abnormally?

A: After taking the doorbell off the bracket, press and hold the power button for 3 seconds to reboot it. If it doesn't respond, you can reset the doorbell by poking the reset hole with a pin. 29 User Instructions FCC Warning 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 inte rference received, including interference that may cause undesired operation. 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 interferenceto 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:

connected. 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 Consult the dealer or an experienced radio/TV technician for help. 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 and your body. A I f o r e v e r y o n e a n d e v e r y t h i n g .

Shenzhen ADDX innovation Technology co., LTD. NO. 2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park, Nanshan District, Shenzhen, China TEL: 18594279025 Class Il Permissive Change Letter Date: Jul. 14, 2023 FCC ID Certification No.: 2AUDF-DB2 To whom it may concer:

We, the undersigned, hereby attest to the fact that we will apply the class II change. The hardware of this equipment is electrically identical with original, only the follow changes to the original but still compliance of relevant standard. There is only change of non-transmitter portions, Radiated Unwanted Emissions testing was performed to demonstrate RF compliance Original Change Il Fah (23766 3 7) 4090mAh, Change description:

1. Change the Charging port Micro USB to Type-C USB,And optimized their matching circuit 2. Change the Battery capacity FXN123788/5000mAh and px123788/5000mAh to 4000mAh Sincerely Gow Se Garry yang /N/A Shenzhen ADDX Innovation Technology co., LTD. Phone: 18594279025 Fax: N/A Email: jyang1 @addx.ai

Shenzhen ADDX Innovation Technology co. ,LTD. NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District, shenzhen China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-7-12 To whom it may concer:

We, Shenzhen ADDX Innovation Technology co. ,LTD., hereby certify that the equipment for which authorization is sought (FCC ID: 2AUDF-DB2) is not covered equipment prohibited from receiving an equipment authorization pursuant to 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (httos://www foc. gov/supplychain/coveredlist) as an entity producing covered equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 DO1 Gow) Se Signature Garry yang Shenzhen ADDX Innovation Technology co. LTD.

Shenzhen ADDX Innovation Technology co. LTD. NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District, shenzhen China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-7-12 To whom it may concer:

We, the undersigned, hereby authorize Eurofins Product Service GmbH to act.on our behaffin all matters relating to applications for equipment authorization FCC ID: 2AUDF-DB2 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins current valid General Terms and Conditions

(AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins de/ee or retrieved on request. 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 the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Go, Se4 Name/Title: Garry yang/

Company: Shenzhen ADDX Innovation Technology co. LTD. Address: NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District, shenzhen China Phone: 18594279025 Fax: 0755-32914980 E-Mail: jyangl@addx.ai

VoO4 91 1(d\(7)-U 29 48_ [model] US_Agent Shenzhen ADDX Innovation Technology co., LTD. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 6/20/23 U.S. Agent Designation Shenzhen ADDX Innovation Technology co., LTD. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2AUDF-DB2 Name and company of U.S. agent: ACT Lab LLC Physical U.S. address of agent: 3280 East 59th Street Long Beach, CA 90805 United States FRN of U.S. agent: 0033465568 Email address of U.S. agent: shuber@act-lab.com ACT Lab LLC acknowledges their obligation to accept service of process on behalf of Shenzhen ADDX Innovation Technology co., LTD. Shenzhen ADDX Innovation Technology co., LTD. with the FRN 0028750016 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7). Sincerely, Gov) Sx Signature Garry yang Shenzhen ADDX Innovation Technology co., LTD. _ Signature Scott Huber Senior Technical Director The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 DO1. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB.

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2023-1-6>

Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID 2AUDF-DB2 Model name DB2 For the product stated above, we request that the following information be held confidential;

Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Xd Md Test Setup Photos User's Manual Parts List Tune Up Operational Descriptions

The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Gow) Name/Title:

Company:

Address:

Phone:

Fax:

E-Mail:

s) J Garry yang/manager Shenzhen ADDX Innovation Technology co. ,LTD. NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District shenzhen China 18594279025 0755-32914980 jyang1@addx.ai

Shenzhen ADDX Innovation Technology co. ,LTD. NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District shenzhen China Date: 2023-1-6 FCC ID: 2AUDF-DB2 Model Number: DB2 To:

Federal Communications Commission. Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To Whom It May Concern, We, Shenzhen ADDX Innovation Technology co. ,LTD. , declare that this EUT

(FCC ID: 2AUDF-DB2) doesnt have Ad Hoc mode function on non-US/ Canada frequencies . In addition. The frequency selection feature is disabled by firmware for devices marked to the US/Canada. For DTS part of this device, only channels 1-11 will be used in North America, Country code selection is disabled. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, Gow Jx4 Name/Title: Garry yang/manager Company: Shenzhen ADDX Innovation Technology co. ,LTD. Address: NO.2902, Building 9A-1. Shenzhen Bay Technology and Ecological Park , Nanshan District shenzhen China Phone: 18594279025 Fax: 0755-32914980 E-Mail: jyang1@addx.ai