Technical parameter Output power: 70W+70W 8Ω Signal-to-noise ratio (weighted): > 90dB Channel separation: 42dB (1KHZ) Total harmonic length distortion: <0. 05% (1KHZ 8Q 1W) Frequency Response: 20HZ-20KHZ (-3dB) Input sensitivity/impedance: 0dB/47KΩ Bluetooth: Version 5.0 USB Protocol 2.0 Bluetooth distance: 10 meters (open area) Power requirements: AC 220V 50HZ/ 60HZ Volume: 248×248×70mm Net weight: 5.5kg ...