FCC ID: 2BD2Q-CUSTOS Custos Smart Headphones

Custos Custos Instruction Manual Please read the instructions carefully and keep it safe. Note: Before using the product for the first time, please charge it with the charging cable to switch it on.

3s-5s 3s-5s /

10S-15S Power on button: Under shutdown state, long press the button for 3 to 5 seconds to turn on the watch. When the watch is powered on, long press the power button for 3s-5s to enter the power off / reset screen. Then press for 10s-15s to reset. Short press to return to function. ANC ANC / ANC ANC buttonANCActive Noise Cancellation) function On/OFF switch

Volume +/- buttonButton for volume decrease and increase.

Music play/paused buttonButton for play or paused music MIC mute buttonPress the button to mute the microphone

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.Message Notification: Swipe down from bottom to top on the homepage of the watch dial. Control Panel: Swipe up from top to bottom on the homepage of the watch dial. Main Menu: Swipe the home page of the watch face towards the right side. Function display: Swipe the home page of the watch face towards the left side. Shortcut to switch the dial: Long press the homepage for 2-3 seconds , and then swipe to left or right to select the dial. Return: Tap the power button to return to previous page. 1. USB Type-c 100%

2. 2 3. /5V/1000mA 4. 1Insert the charger into the headphone jack and charge for 2 hours. 2Connect the charging cable to a standard charger purchased from a reputable source. The output voltage should be 5V and the output current should be 1A. If the headphones fail to turn on after prolonged storage, a long charge is needed to activate the battery. Note: If the headphones are not frequently used, it is recommended to charge the headphones once a week.

/Star to use 1: SIM SIM SIM SIM Take out the SIM card holder, put the SIM card into the SIM card holder in the right way, and put the SIM card holder into the earphone. 2. 3-5S 2Press the power button for 3-5 seconds to turn on, and select the language. 3 SIM SIM 3Check the SIM card status, power on and enter the main standby interface, swipe from the top to bottom enter the control panel to view the network standard and signal strength of the SIM card and Battery level Main Function Introduction Shortcuts Do not disturb mode switch WIFI WIFI switch

/ Ring/mute mode Flight mode switch Save battery mode LCD Brightness Setting Phone SIM

... After inserting the SIM and searching for a network, you can make and receive phone calls on the earphones. To make a call, select the "Phone" function on the earphones. The first screen allows you to access your call history to make a call, or you can enter the phone number in the dialing pad to make a call. You can adjust the call volume and ON/OFF the mute switch of the call by going to "...More options". APP Connect with PC USB https://pan.baidu.com/s/1xvSs_oA3piTi0Mg7Wdjl_w vcdx USB TYPE C File transfer Basic Parameters Screen :1.99inch TFT-LCD 400*454px Touch Screen : Capacitive full touch screen Bluetooth :5.0 WIFI: ac/a /b/g/n 2.4GHZ/5GHZ CPU:MT6762 8-core RAM: 4GB/6GB ROM:128GB Communication FrequencyGSM 850 / 900 / 1800 / 1900 WCDMA:B1/B2/B5 TD-SCDMA:B34/B39 LTE-FDD:B1/B2/B3/B5/B7/B8/B12/B17/B20 LTE-TDD :B38/B39/B40/B41(100MHz) Battery :800mAh polymer lithium battery Charging time 2H Charge Mode:TYPE-C OS: ANDROID 11 FCC Statement 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. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. Additional information on Specific Absorption Rates (SAR) can be found on the Cellular Telecommunications Industry Asso-ciation (CTIA) web-site at http://www.wow-com.com. * In the United States and Canada, the SAR limit for mobile phones used by the public is 1.6 watts/kg (W/kg) averaged over one gram of tissue. The standard incorporates a sub-stantial margin of safety to give additional protection for the public and to account for any variations in measurements.

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Vernte Technologies 2024-3-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (Shenzhen DL Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Company name: Vernte Technologies Address: 5214 Diamond heights Blvd, San Francisco, California, USA (94131) Signature:

Joe Akinnifesi/Manager

Vernte Technologies 2024-3-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (2BD2Q-CUSTOS)

[Vernte Technologies] (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Name: Joe Akinnifesi Title: Manager Vernte Technologies 2024-3-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (2BD2Q-CUSTOS)

[Vernte Technologies] (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Sincerely, Name: Joe Akinnifesi Title: Manager

Vernte Technologies 2024-3-17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Custos Smart Headphones MODEL: Custos FCC ID: 2BD2Q-CUSTOS To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the

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- Operational Description Tune up Procedurer BOM required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Company name: Vernte Technologies Address: 5214 Diamond heights Blvd, San Francisco, California, USA (94131) Signature:

Joe Akinnifesi/Manager

Attestation Statements 2024-3-17 TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (2BD2Q-CUSTOS)

(Vernte Technologies), the undersigned, hereby authorize (Vernte Technologies) to act as our designated U.S. agent for service of process, Vernte Technologies accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment.

(Vernte Technologies) accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information Company name: Vernte Technologies Contact Name: Joe Akinnifesi FRN: 0034603985 Address: 5214 Diamond heights Blvd, San Francisco, California, USA (94131) Telephone No: (617) 821-0223 Email: verntetech@gmail.com Signature:

Joe Akinnifesi/Manager U.S. Agent Information:

Company name: Vernte Technologies Contact Name: Joe Akinnifesi FRN: 0034603985 Address: 5214 Diamond heights Blvd, San Francisco, California, USA (94131) Telephone No: (617) 821-0223 Email: verntetech@gmail.com Signature Joe Akinnifesi/Manager