Speaker System: Speaker Type: full range Satellite Speaker Unit: Diameter of Speaker Unit(Satellite Speaker): 42mm Bluetooth Spec: Bluetooth Technology: Bluetooth Specification version 4.2 Effective Range: 10m Frequency Range: 2.4GHz band Interface: A2DP/AVRCP/HSP/HFP/SPP Supported Audio Format(s): SBC/AAC/LDAC Frequency Range(A2DP): 20 Hz - 20,000 Hz(44.1 kHz sampling) Hands Free NFC: Bluetooth connection Inputs and Outputs: Stereo Mini Jack(IN) Stereo Mini Jack(OUT) RCA Jack(IN) RCA Jack(OUT) USB A Terminal USB B Terminal Optical Digital Input HDMI Headphone Out Ethernet Jack Others: micro USB Speaker output Sound: Clear Audio+ DSEE Power: Power Type DC Battery Life: Approx. 12h What's in the box Speaker USB Cable