Specification Version bluetooth V5 3Protocol A2DP AVRCP HFP HSPAudio Format SBC MP3 Wav WMA APE FLACEQ Bass Normal Treble Interface Optical Coaxial 3 5mm AUX USB microSD TFSampling Rate 33 44 1 48 96Khz 16 24bitWorking Distance Max 30 meterWorking Voltage 5VAccessories Fiber Cable 3 5mm Cable 3 5mm to R L Cable USB Type C Cable Coaxial Cable Remote ControlSize 86 x 60 x 22mmWeight 122gPackage Includes 1 bluetooth Receiver Transmitter