Notice: 1. Bluetooth signal only can be searched after selecting Bluetooth Input Mode. 2. The remote control doesn't include battery for safe delivery, please prepare by yourself. Parameters: Audio input: Bluetooth 5.0 / RCA / USB / Optical / Coaxial Audio output: Banana speaker jacks / Low frequency(connect active subwoofer) PC-USB/Optical/Coaxial input sampling frequency: 192K/24Bit PC-USB System supported: XP/W7/W8/W10/MAC/linux Working voltage: DC24V-36V Input Sensitivity: 0.775V THD: ? 0.01% Frequency Range: 20Hz - 20kHz ( ±3 dB ) SNR: ? 105dB Speaker impedance: 4-8? Max power output: 120W + 120W (4? load) Dimensions(W*D*H): 185*128*38mm / 4.65*6.22*1.46in Net Weight: 791g / 4.65lb Package Weight: 1450g / 3.40lb Packing List: 1*A10 Amplifier 1*Power Supply (32V/5A) 1*USB Cable 1*Optical Cable 1*Remote Control(without battery) 1*Bluetooth Antenna 1*Manual