Parameters: Model: AIYIMA B01 Number of channels: 2.0 / 2.1 / 2.2 Audio input: Bluetooth/Stereo RCA/U-disk(choose one input) Audio output: banana speaker jacks U-disk support format: MP3, WMA, APE, FLAC, WAV... Bluetooth version: 5.0 Speaker impedance: 4-8Ω Max output power: 50W*2+100W (4Ω load) SNR: ≥98dB Input sensitivity: 0.775V THD: 0.05%(1kHz 1W) Frequency Response: 20Hz-20KHz(±3dB) Low frequency adjustment range: 40-300Hz Working voltage: DC 12-24V Dimensions(W*D*H): 130*128*30mm Features: 1.M3 amplifier supports stereo RCA and Bluetooth 5.0 input, compatible with phones, tablets, computers, TVs, MP3 players, TV, CD players etc. It is also a digital music player with U-disk input supporting MP3 and lossless formats such as WAV, APE, FLAC and WMA. 2.Reasonable circuit layout and concise wiring ensures HiFi clear and clean sound, treble and bass control makes sound more delicate and charming. Independent low frequency adjustment and bass volume control are designed, the bass effects is greatly enhanced, the shocking auditory effects make you feel like in the cinema. Separate structure makes it multi-functional, it can independently connect to a pair of stereo speakers or subwoofer, and a low frequency output is specially added for the users who only have active subwoofer, easy to build 2.0 channel / 2.1 channel / 2.2 channel audio system as you like. 3.Using classic 2PCS TPA3116D2 amp chip, max output power can reach 50W*2(left and right channel) +100W (subwoofer out), equipped with high-quality 24V/4.5A power supply enough to drive most / bookshelf/ computer/ desktop passive speakers and subwoofers. 4.Exquisite appearance but durable aluminum alloy case in proper size, with input switch, working indicator and remote control, very clear to show the working statusand convenient to operate, very suitable for home and desktop audio system use. Packing List : 1*B01 Amplifier 1*19V/4.75A Power Supply (depend on your choose)

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