2BB3X-2531Floor mounted corner light

Scan code and download App: Instructions: This product uses USB power supply. After turning on the bracket and fixing the lamp, you can connect the USB cable to the power supply with USB interface (such as computer, mobile phone charger, Power Bank , USB socket, etc.). After power on, the light will be on, and the default is 7 color cycle change colour. Three Control mode: 1 Button on the lamp: press once to switch a luminous mode, and press for 3 seconds to turn it on or off. 2 remote control: use the infrared remote control to press the required function key to control the lamp. Different sizes of remote controllers may be provided according to different packaging boxes. 3 App control: after downloading the App from the mobile phone, turn on the Bluetooth function of the mobile phone and turn on miracles star . 0 / 1 in the upper left corner is the Bluetooth connection, 0 is not connected and can be connected manually. 1 is already connected.It can be connected to control multiple lights at the same time. The hexagonal symbol in the upper right corner is the debugging color sequence, usually RGB. If the color controlled is different from the actual, you can change other sequences. In the color matching interface, click the LED Quantity setting, enter 24 and confirm the desktop model(50CM), and enter 60 and confirm the floor lamp model(110CM).The above steps are necessary for multiple lights to change color synchronously In the mode interface: there are dozens of luminous colors and dynamics for you to choose from, and the speed and brightness can also be adjusted. In microphone mode: you can change color according to the rhythm of ambient sound, and also select different modes and sensitivity. FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

Shenzhen Dingdian Network Technology Co., Ltd. Room 604, Bantian Group, No. 20, Lane 1, Lishi Pai Community, Bantian Street, Longgang District, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023/07/13 U.S. Agent Designation Shenzhen Dingdian Network 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: 2BB3X-2531): Name and company of U.S. agent: SUN BEYOND CONSULTING LTD Physical U.S. address of agent: OFFICE NO.448,4TH FLOOR,90 CANAL STREET BOSTON,, MA 2114 United States FRN of U.S. agent: 0033598426 Email address of U.S. agent: [email protected] SUN BEYOND CONSULTING LTD acknowledges their obligation to accept service of process on behalf of Shenzhen Dingdian Network Technology Co., Ltd. Shenzhen Dingdian Network Technology Co., Ltd. with the FRN [0034003657] 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). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. 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. Sincerely, Signature Yuanping Cai Manager Shenzhen Dingdian Network Technology Co., Ltd. Signature Wenchao Xiang Manager SUN BEYOND CONSULTING LTD 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

FCC ID: 2BB3X-2531 External Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2BB3X-2531 Photo 4 Photo 5 Photo 6 FCC ID: 2BB3X-2531 Photo 7

Label and Location Size: L: 2.0cm*W: 1.0cm Label and Location Model No.: 2531 FCC ID : 2BB3X-2531

FCC ID: 2BB3X-2531 Internal Photos of the EUT Photo 1 Photo 2 Photo 3 BLE PCB Antenna FCC ID: 2BB3X-2531 Photo 4

1. Antenna Description: Antenna type PCB antenna Model 2531 Frequency range 2400-2500MHz Manufacturer Shenzhen Dingdian Network Technology Co., Ltd. ANT Peak Gain 0.50 dBi 2. Antenna Photo: Length :9.73mm Width:3.55mm 3. Test Equipment & Conditions 3.1 Test instrument VSWR is tested using Agilent E5071B connected to a hand mechanism, and the status is free space. 3.2 Test environment and methods 4．Antenna Radiation Pattern 2400MHz 2450MHz 2500MHz

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID. ............................................ : CTA23071000201 2BB3X-2531 Compiled by ( position+printed name+signature) .. : File administrators Zoey Cao Supervised by ( position+printed name+signature) .. : Project Engineer Amy Wen Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Jul. 12, 2023 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Shenzhen Dingdian Network Technology Co., Ltd. Address ............................................ : Room 604, Bantian Group, No. 20, Lane 1, Lishi Pai Community, Bantian Street, Longgang District, Shenzhen, China Test specification ...........................: Standard ........................................... : FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: Floor mounted corner light Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Dingdian Network Technology Co., Ltd. Model/Type reference....................... : 2531 Listed Models .................................. : 2531-1, 2531-2, 2531-3, 2531-4 Modulation ....................................... : GFSK Frequency .......................................... From 2402MHz to 2480MHz Ratings ............................................. : DC 5.0V From external circuit Result................................................ : PASS Report No.: CTA23071000201 Page 2 of 34 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Floor mounted corner light Model /Type : 2531 Listed Models : 2531-1, 2531-2, 2531-3, 2531-4 Applicant : Shenzhen Dingdian Network Technology Co., Ltd. Address : Room 604, Bantian Group, No. 20, Lane 1, Lishi Pai Community, Bantian Street, Longgang District, Shenzhen, China Manufacturer : Shenzhen Dingdian Network Technology Co., Ltd. Address : Room 604, Bantian Group, No. 20, Lane 1, Lishi Pai Community, Bantian Street, Longgang District, Shenzhen, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23071000201 Page 3 of 34 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S ................................................................. 4 2 S U M M A R Y ............................................................................ 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Equipment Under Test 5 2.4 Short description of the Equipment under Test (EUT) 5 2.5 EUT operation mode 6 2.6 Block Diagram of Test Setup 6 2.7 Related Submittal(s) / Grant (s) 6 2.8 Modifications 6 3 T E S T E N V I R O N M E N T .............................................................. 7 3.1 Address of the test laboratory 7 3.2 Test Facility 7 3.3 Environmental conditions 7 3.4 Summary of measurement results 8 3.5 Statement of the measurement uncertainty 8 3.6 Equipments Used during the Test 9 4 T E S T C O N D I T I O N S AN D R E S U L T S ........................................... 10 4.1 AC Power Conducted Emission 10 4.2 Radiated Emissions and Band Edge 13 4.3 Maximum Peak Output Power 20 4.4 Power Spectral Density 21 4.5 6dB Bandwidth 23 4.6 Out-of-band Emissions 25 4.7 Antenna Requirement 29 5 T E S T S E T U P P H O T O S O F T H E E U T ......................................... 30 6 P H O T O S O F T H E E U T ........................................................... 31 Report No.: CTA23071000201 Page 4 of 34 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices KDB558074 D01 V05r02: Guidance for Performing Compliance Measurements on Digital Transmission Systems (DTS) Operating Under §15.247 Report No.: CTA23071000201 Page 5 of 34 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuh…

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FCC ID: 2BB3X-2531 Test Setup Photos of the EUT