Brand FX-AUDIO- Model FX1602S Colors Black + silver Quantity 1 Type Mini Material Aluminum alloy + components Total Power 160W + 160W Signal to Noise Ratio(SNR) 90dB Channels 2.1 Power Supply 24~36V Plug Type 2-Flat-Plug Interface DC external diameter: 5.5mm internal diameter: 2.5mm Other Features With Hi-Fi TPA6120 headphone amplifier; BC-05 bluetooth Hi-Fi module; Analog signal input sensitivity: RMS 1~2V; Bluetooth transmission distance: 20m; Version: V2.1 + EDR; With SBC MP3 AA audion decoding function; WIth A2DP AVRCP stereo sound transmission function; Headphone amplifier: 32ohm:1.25W 600ohm: 80MW; Amplifier output: 4ohm: 160W 8ohm: 100W; Bluetooth instruction: switch on amplifier push signal choose switch upward red light flash open cellphone or other device to search bluetooth of FX-AUDIO-1602S Packing List 1 x Amplifier 1 x Antenna 1 x 100~240V power adapter 1 x Charging cable (150cm)