FCC ID: 2A9OU-S14 S14

1. Function Description:

1.1 Matching remote control 433.92MHz 12 key remote control panel as shown in the right figure:

ON/OFF: Click to turn on/off the light TIMER: Click to start the timer and turn it on for 6 hours and off for 18 hours Press and hold for 3 seconds to disable the timer function . DIM+and DIM -: Click to adjust brightness in 4 levels AUTO: Click, cycle running mode M1-M7 M1-M7: Click to enter the corresponding mode . 1.2 Function description Power on working mode, default to COMBINATION;

The 8 functional modes are as follows:

Section 0 (AUTO): Automatic continuous changes in various mode functions

(COMBINATION), that is, automatic changes in functions from Section 1 to Section 7, with adjustable brightness for 4 levels:

(M1 runs 5 seconds) - (M2 runs 5 seconds) - (M3 runs 1 time) - (M4 runs 1 time) -

(M5 runs 1 time) - (M6 runs 5 times) - (M7 runs 1 time) Section 1 (M1): Fixed Forward Steady On, with adjustable brightness for 4 levels;

Section 2 (M2): Reverse Steady On, with adjustable brightness for 4 levels;

Section 3 (M3): Alternating left and right running (Sequential), 4-speed cycling (4-8 times -16 times -32 times, total cycle of 20 seconds), 4-speed brightness adjustable;

Section 4 (M4): Single light gradually dimming automatic alternating change

(SLO-GLO), 3 speed cycling (cycle 20+10+5 seconds), 4 brightness adjustable;

Section 5 (M5): Running horses alternates between left and right for 8 times, and stars automatically change (4 times+4 times) (Chasing/Flash) (cycle of 2.5 seconds), with adjustable brightness in 4 gears;

Section 6 (M6): Simultaneously increasing brightness and decreasing brightness automatically (Slow fade) (cycle 4 seconds), with adjustable brightness in 4 levels;

Section 7 (M7): Twinkle/Flash (16 runs per 4 seconds+8 runs per 8 seconds), with adjustable brightness in 4 levels;

2. Key functions:

Press to switch 8 functional modes;

Press and hold for about 3 seconds to enter the remote control coding mode

(limited to 30 seconds). At this time, the green indicator light flashes, and press the new remote control "ON/OFF"

Press the "ON/OFF" button on the remote control, the green light will stop flashing and turn off. Pressing the "ON/OFF" button on the remote control will cause the lights to turn on and off, indicating that the new remote control has been paired successfully;

After entering the pairing mode, automatically exit the pairing mode at a fixed time of 30 seconds (the green indicator light is off), or press and hold the button again for about 3 seconds to exit Pairing mode (green indicator light off);

A device can only be paired with one remote control, that is, after the new remote control is successfully paired, the old remote control cannot control the device. 3. Support power down memory function, keep the current light mode on for more than 3 seconds, and remember the current state value;

4. Cancel remote control pairing: In brightness mode, press and hold the "ON/OFF" button of the paired remote control (turn off the light) for about 3 seconds until the light string is reset. If it lights up again, it indicates successful cancellation of remote control pairing, and the light string also enters remote control pairing mode (timed for 30 seconds), with a green light flashing. FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

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Shenzhen Wittlang Electronics Co., Ltd 2023.08.18 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize Shenzhen BCTC Testing 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, Clients signature:

Clients name / title : Jiafu xiao /Manager Contact information / address: 601, Factory Bldg#2, Jiancang Technology R & D Area, Tantou Community, Songgang Street, Bao'an District, Shenzhen City, Guangdong Province, China

Shenzhen Wittlang Electronics Co., Ltd 2023.08.18 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 2A9OU-S14

[Shenzhen Wittlang Electronics Co., Ltd] (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,

(Applicant signature)

(Applicant printed name) Jiafu xiao Shenzhen Wittlang Electronics Co., Ltd 2023.08.18 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 2A9OU-S14

[Shenzhen Wittlang Electronics Co., Ltd] (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,

(Applicant signature)

(Applicant printed name) Jiafu xiao

2023.08.18 Shenzhen Wittlang Electronics Co., Ltd Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: S14 MODEL : VCT-CLC041, VCT-CLC042,VCT-CLC043,VCT-CLC044,VCT-

CLC045,VCT-CLC046,VCT-CLC047,VCT-CLC048,VCT-CLC049,VCT-

CLC050,VCT-CLC051,VCT-CLC052,VCT-CLC053,VCT-CLC054,VCT-

CLC055,VCT-CLC056,VCT-CLC057,VCT-CLC058,VCT-CLC059,VCT-CLC060 FCC ID : 2A9OU-S14 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

- Block Diagram

- Schematics

- Operational Description 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, Clients signature:

Clients name / title : Jiafu xiao /Manager Contact information / address: 601, Factory Bldg#2, Jiancang Technology R & D Area, Tantou Community, Songgang Street, Bao'an District, Shenzhen City, Guangdong Province, China

Shenzhen Wittlang Electronics Co., Ltd Model Difference 2023-08-18 EUT NAME: S14 MODEL : VCT-CLC041, VCT-CLC042,VCT-CLC043,VCT-CLC044,VCT-

CLC045,VCT-CLC046,VCT-CLC047,VCT-CLC048,VCT-CLC049,VCT-CLC050,VCT-

CLC051,VCT-CLC052,VCT-CLC053,VCT-CLC054,VCT-CLC055,VCT-CLC056,VCT-

CLC057,VCT-CLC058,VCT-CLC059,VCT-CLC060 All the model are the same circuit and RF module, except model names. Regards Sincerely Clients signature:

Clients name / title : Jiafu xiao /Manager Contact information / address: 601, Factory Bldg#2, Jiancang Technology R & D Area, Tantou Community, Songgang Street, Bao'an District, Shenzhen City, Guangdong Province, China

Shenzhen Wittlang Electronics Co., Ltd U.S. Agent Designation for Service of Process

(Applicant and U.S. Agent are Separate Parties) TO:

Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: ken.young@baihetiansolutions.com This letter is to confirm that we (the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature:

Date: Aug 18, 2023 Signed by (Printed Name/Title): Kenneth Young/Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Shenzhen Wittlang Electronics Co., Ltd Grantee Code: 2A9OU FCC ID: 2A9OU-S14 Contact Name: Jiafu xiao Street Address: 601, Factory Bldg#2, Jiancang Technology R & D Area, Tantou Community, Songgang Street, Bao'an District, City/Province/Zip: Shenzhen City, Guangdong Province, China Telephone No: 15889632592 Email: 2358466809@qq.com Applicant Signature:

Date: 2023/08/18 Signed by (Printed Name/Title): Jiafu xiao / Manager