Bluetooth Version: Bluetooth 5.2;

Noise Reduction Mode: TWS Hybrid Noise Canceling Headphones;

Noise Reduction Depth: The peak value is not lower than -40dB, the average value is not lower than -28dB, and it is greater than -25dB in the frequency range of 40-500Hz;

Bluetooth Solution: BES2600YP;

Call Noise Reduction: Supports uplink call noise reduction;

Control Method: The headphones are touch-controlled, and the charging case has no physical buttons;

Indicator Light Display: There is no indicator light on the headphones; the charging case has three indicator lights;

Wearing Method: In-ear type;

Charging Interface: Type-C interface;

Wind Noise Requirement: When the wind speed is 4 m/s, for ANC: there is no obvious wind noise, and a slight wind noise that is not harsh is acceptable, and it is not inferior to the reference competitor product. For ENC: there is no obvious harsh wind noise, and a slight wind noise is allowed as long as it does not cover the human voice (the uplink human voice can be identified), and it is not inferior to the competitor product;

We can accept PCBA Design & Layout, PCB Scheme Design & Layout, Speaker & Mic Selection and Testing, ID Structure Evaluation, ID Structure Evaluation, Software Development, Audio Algorithm Development, and customized development of ANC & ENC acoustic debugging.