Mini HIFI digital bluetooth audio power amplifier.Aluminum alloy body, durable, the body is made of aluminum alloy once, the anode surface treatment, the overall atmospheres, thick, feel is also very good.for SD Card, U disk, AUX input, MP3 format play, support bluetooth wireless connection.Supports FM stereo radio.Low distortion supplies a clearer, stronger and more powerful sound.With Remote control function.The power amplifier can be connected to mobile phones, computers, tablets, , MP3 players, televisions and projectors with AV audio (lotus socket) or 3.5mm headphone output holes, etc. All kinds of mobile phones on the market can be connected by Bluetooth, which can realize wireless playback.Model Number: AK380:(Support Bluetooth /SD Card)Amplifier type: hifi power amplifierRated voltage: 12VRMS power: 40W+40WMax power: 400W+400WRated frequency: 20-20KHzResolution: 47KDistortion rate: 0.1: 90dBImpedance: 4-16 ohmPower amplifier type: hifi amplifierInterface type: clipReceiving mode; audio inputColour:blackMaterial:aluminum alloySize:155 x 85 x 45mmPackage Contents:1 Amplifier1 x Remote Control(random colors, don't accept the specified color) Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.