2A6EB-YKQ510Remote control

Remote Control Instructions Versions: V1.0 一、product presentation 1、Power Supply: Two 1.5V DC batteries 2、support BLE 二、Remote Control Instructions （1）Pairing Method Long-press the WL button on the remote control for 2–3 seconds to pair it. The indicator light will flash rapidly to confirm pairing; after successful pairing, it will first flash slowly and then stop blinking. Following pairing, all buttons except TRE and BASS will flash slowly three times; pressing TRE or BASS will trigger one slow flash; pressing volume up/down buttons will each cause one slow flash. After exiting adjustment mode, the light will flash slowly three times. （2）functional description Startup & Shutdown Short press to turn the device on or off Wireless Mode Short press to enter wireless playback mode; long press to enter pairing mode Volume Down Short press to reduce the music volume by one level. If the current setting is high or low, adjust this function to reduce it by one level. Increase Volume Short press the volume up button to increase the volume by one level. If the current setting is high or low, adjust this function to increase the volume by one level or decrease it by one level. Play \Pause In wireless mode, short press to play or pause; ARC mode is disabled Previous Song Short press Music to play the previous track. ARC, AUX, and SPDIF fiber modes are disabled Next Song Short press Music to play the next track. ARC, AUX, and SPDIF fiber modes are disabled high pitch Shortly press the indicator light to flash slowly once to enter high-frequency adjustment mode. Press the volume up/down button to adjust the high frequency. Shortly press any other key except the high/low buttons or hold for 3 seconds to automatically exit high-frequency adjustment mode. Bass Shortly press the indicator light to flash slowly once to enter bass adjustment mode. Use volume up/down buttons to adjust bass intensity. Shortly press any other button except high/low or hold for 3 seconds to automatically exit bass adjustment mode. Mode Switch Short press to switch playback modes in the order: USB → AUX → ARC → SPDIF Music Sound Effects Short press to access music effects Movie Sound Effects Short press to access movie sound effects 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.

(Zhuhai Rongyuan Electronic Technology Co.,Ltd) (2026.7.29) 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(FCC ID: 2A6EB-YKQ510) [Zhuhai Rongyuan Electronic Technology 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Huangbo Lan (Zhuhai Rongyuan Electronic Technology Co.,Ltd) (2026.7.29) 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(FCC ID: 2A6EB-YKQ510) [Zhuhai Rongyuan Electronic Technology 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) Huangbo Lan

Rev 1/26/2023 Zhuhai Rongyuan Electronic Technology Co.,Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/7/22 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2A6EB-YKQ510 Applicant FRN: 0032249443 [Zhuhai Rongyuan Electronic Technology Co.,Ltd] certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [Zhuhai Rongyuan Electronic Technology Co.,Ltd] 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. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, [Zhuhai Rongyuan Electronic Technology Co.,Ltd] FCC US Agent, LLC [Huangbo Lan] Tim Payne

Zhuhai Rongyuan Electronic Technology Co.,Ltd 2026.7.29 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Remote control MODEL : YKQ510, YKQ510A , YKQ510B, YKQ510C, YKQ510D, YKQ510E, YKQ510F FCC ID: 2A6EB-YKQ510 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, Client’s signature: Client’s name / title : Huangbo Lan / R&D Manager Contact information / address: 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, NanpingScience and Technology lndustrial Park, Zhuhai City,Guangdong Province, China

Zhuhai Rongyuan Electronic Technology Co.,Ltd 2026.7.29 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION EUT NAME: Remote control MODEL : YKQ510, YKQ510A , YKQ510B, YKQ510C, YKQ510D, YKQ510E, YKQ510F FCC ID: 2A6EB-YKQ510 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC 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, Client’s signature: Client’s name / title : Huangbo Lan / R&D Manager Contact information / address: 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, NanpingScience and Technology lndustrial Park, Zhuhai City,Guangdong Province, China

Shenzhen BIQU Innovation Technology Co., Ltd. Model Difference 2026/07/24 EUT NAME: Remote control MODEL : YKQ510, YKQ510A , YKQ510B, YKQ510C, YKQ510D, YKQ510E, YKQ510F FCC ID: 2A6EB-YKQ510 All the model are the same circuit and RF module, except model names. Sincerely Client’s signature: Client’s name / title : Huangbo Lan / R&D Manager Contact information / address: 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, NanpingScience and Technology lndustrial Park, Zhuhai City,Guangdong Province, China

External Photos

Size:25*10mm Model: YKQ510 FCC ID: 2A6EB-YKQ510 Label location

Internal Photos Antenna

FCC ID: 2A6EB-YKQ510 RF exposure evaluation §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidance. The 1-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison  GFSK Modulation Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR GFSK 2.402 1.71 1±1 2 1.585 5 0.49 3.0 Conclusion: For the max result : 0.49 ≤ FCC Limit 3.0 for 1g SAR.

Productspecification QuickReferenceDate Allthetechnicaldataandinformationcontainedhereinaresubjecttochangewithoutpriornotice AntennaLayout&moduleonthesystemboard AntennaGain GainTable TheEnvironmentofAntennaRadiationPattern

No.：BCTC/KJ-RF-ICT-001 Page 1 of 52 Edition：B.1 TEST REPORT Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC2605988513E Applicant: Zhuhai Rongyuan Electronic Technology Co.,Ltd Product Name: Remote control Test Model: YKQ510 Tested Date: 2026-06-12 to 2026-07-28 Issued Date: 2026-07-28 Report No.: BCTC2605988513E No.：BCTC/KJ-RF-ICT-001 Page 2 of 52 Edition：B.1 FCC ID: 2A6EB-YKQ510 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Technology Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Remote control Trademark: N/A Model/Type Ref.: YKQ510 YKQ510A, YKQ510B, YKQ510C, YKQ510D, YKQ510E, YKQ510F Prepared For: Zhuhai Rongyuan Electronic Technology Co.,Ltd Address: 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, NanpingScience and Technology lndustrial Park, Zhuhai City, Guangdong Province, China Manufacturer: Zhuhai Rongyuan Electronic Technology Co.,Ltd Address: 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, NanpingScience and Technology lndustrial Park, Zhuhai City, Guangdong Province, China Prepared By: Shenzhen BCTC Technology Co., Ltd. Address: Room 101M, Unit 1, Building1, Pengyuan, No.18, Lilang Road, Shanglilang, Nanwan Subdistrict, Longgang District, Shenzhen, Guangdong, China. Sample Received Date: 2026-06-12 Sample tested Date: 2026-06-12 to 2026-07-28 Report No.: BCTC2605988513E Test Standards: 47 CFR Part 15 Subpart C (clause 15.247) ANSI C63.10-2020 Test Results: PASS Remark: This is Bluetooth BLE radio test report. Prepared by : Reviewer by : Approved by: Louis Zeng Mike Zheng Sewen Guo Report No.: BCTC2605988513E No.：BCTC/KJ-RF-ICT-001 Page 3 of 52 Edition：B.1 Table of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 14 6.1 Block Diagram Of Test Setup .............................................................................. 14 6.2 Limit .................................................................................................................... 14 6.3 Test procedure .................................................................................................... 14 6.4 EUT Operating Conditions .................................................................................. 15 6.5 Test Result .......................................................................................................... 15 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement and Restricted Bands Of Operation ...... 24 8.1 Block Diagram Of Test Setup .............................................................................. 24 8.2 Limit .................................................................................................................... 24 8.3 Test Procedure ................................................................................................... 25 8.4 EUT Operating Conditions .................................................................................. 25 8.5 Test Result .......................................................................................................... 26 9. Power Spectral Density Test ............................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .........................................…

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Report No.: BCTC2605988513E No.：BCTC/KJ-RF-ICT-001 Page 51 of 52 Edition：B.1 14. EUT Test Setup Photographs Radiated Measurement Photos