2BLT4-F5

Youlisn(Shenzhen)Technology Co.,Ltd

Bluetooth Headset

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Application Details

Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
Date of Grant: Apr 13, 2026
Application Purpose: Original Equipment
Equipment Note: Bluetooth Headset
Frequency Range: 2402.00000000 - 2480.00000000
Company: Youlisn(Shenzhen)Technology Co.,Ltd
Country: China

Documents & Files

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Users Manual

Attestation Statements

Cover Letter(s)

External Photos

ID Label/Location Info

Internal Photos

RF Exposure Info

Test Report

Test Setup Photos

Contact Information

Applicant

Xiao Juan Lliu

[email protected]Fax: 19166367842

Technical Contact

LOBOS IOWA INCHarley Li

[email protected]

4623 Bittercreek Dr Colorado Springs CO 80922 · United States

Test Firm

Shenzhen Bangce Testing Technology Co. , Ltd.Hans Hu

[email protected]

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	540.00 µW

Confidentiality

Long Term

Grant Notes

Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

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Wireless Headphones

Jan 21, 2026

Equipment Class

DSS - Part 15 Spread Spectrum Transmitter