Desktop HIFI Amplifier: 2.1 Ch Bluetooth 5.0, USB/RCA & 4-8Ω Impedance
1 x HiFi Amplifier. Speaker impedance:4-8Ω. Input impedance:47kOhm. Sound Amplifier AK270 20WX2 Mini Hifi Digital Audio Amplifier 12V 3A Channel 2.0. Input port:USB/RCA、Bluetooth. Distortion rate:<4%.