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2AVJD-K521B - Wireless earphones | Shenzhen Ruianyuan Ele...
2AVJD-K521B
Shenzhen Ruianyuan Electronic Technology Co., Ltd.
Wireless earphones
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Application Details
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
Date of Grant
Nov 27, 2025
Application Purpose
Original Equipment
Equipment Note
Wireless earphones
Frequency Range
2402.00000000 - 2480.00000000
Company
Shenzhen Ruianyuan Electronic Technology Co., Ltd.
Country
China
Documents & Files
Select a file to view
Users Manual
📄
User Manual
Attestation Statements
📄
2avjd-k521b Us Agent
📄
Usa-coveredequipmentletter-combined V1
Cover Letter(s)
📄
Fcc Declaration Letter Tws Left&right
📄
Usa-confidentialityrequestletter V0
External Photos
📄
External Photos
ID Label/Location Info
📄
Fcc Id Label
Internal Photos
📄
Internal Photos
RF Exposure Info
📄
Aitdg-250829001w2 Fcc Rf Exposure 0cm
Test Report
📄
Aitdg-250829001w1 Test Report-bt
📄
Antenna Specification
📄
Appendix A Rf Test Data For Bt Part1
📄
Appendix A Rf Test Data For Bt Part2
Test Setup Photos
📄
Test Setup Photos
Contact Information
Applicant
Meizhen Lin
[email protected]
Fax:
0755-23702323
Test Firm
Dongguan Yaxu (AiT) Technology Limited
Coin Tang
[email protected]
Technical Specifications
#
Rule Parts
Frequency Range
Power Output
1
15C
2.40 GHz - 2.48 GHz
1.90 mW
Confidentiality
Long Term
Grant Notes
Output Power listed is peak conducted.
Other Applications from Shenzhen Ruianyuan Electronic Technology Co., Ltd.
2AVJD-K520
Wireless bluetooth headset
Jan 10, 2024
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
2AVJD-K08
Wireless bluetooth headset
Jan 15, 2020
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter