Support digital audio signal conversion to analog audio Bluetooth receiver, built-in Bluetooth 5.0 version chip External Bluetooth antenna Support automatic switching of Bluetooth mode Personalized indicator Support one fiber and one coaxial interface input Support and a 3.5mm audio port output Built-in high-performance chip supports 192Khz/24-bit audio parameters Support output volume control Ultra low power consumption This & Bluetooth converter converts optical or coaxial digital audio signals and Bluetooth receivers into stereo analog signals. Help users connect high quality digital audio signals to regular AV amplifiers. This product is very suitable for home theater, teaching, training structure, conference rooms, home appliance stores and other places. Specifications: Optical/Coax Input: Two Channel LCPM/24 Bit/192Khz Bluetooth supports audio parameters: Two-channel LCPM/16-bit/48Khz Bluetooth version: 5.0version output maximum level: 1.2Vrms 3.5mm audio port output maximum level:1.2Vrms 3.5mm audio port output maximum power:30mW Maximum working current:5V/75mA Working environment temperature:-10C-+55C Storage environment temperature:-26C-+60C Working environment humidity:10-90%RH (no condensation) Storage environment humidity:5-95% RH (no condensation) Colour:Black Material:iron Package Contents: 1 x Converter 1 x USB Power Cable 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.