Introduction: This DAC& 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 Features: 1. Support digital audio signal conversion to analog audio 2. Bluetooth receiver, built-in Bluetooth 5.0 version chip 3. External Bluetooth antenna 4. Support automatic switching of Bluetooth mode 5. Personalized indicator 6. Support one fiber and one coaxial interface input 7. Built-in high-performance DAC chip supports 192Khz24-bit audio parameter 8. Support 2RCA and a 3.5mm audio port output 9. Support output volume control 10. Ultra low power consumption Specifications: OpticalCoax Input : Two Channel LCPM24 Bit192Khz Bluetooth supports audio parameters ： Two-channel LCPM16-bit48Khz Bluetooth version： 5.0version RCA 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; 5V75mA Working environment temperature: -10~+55°C Storage environment temperature:-26~+60°C Working environment humidity :10~90%RH (no condensation) Storage environment humidity: 5~95% RH (no condensation)