Feature: Mini HIFI digital bluetooth audio power amplifier.Add single cycle button to cycle favorite music easily.<br> SD / USB interface, 2 Mic inputs, With Remote control.<br> TF Card, AUX, U disk, MP3 format play, support bluetooth wireless connection.<br> Supports FM stereo radio, Mp3 media Player.<br> With treble, bass, and volume control, very easy to use.<br> Specification:<br> Name: HiFi Audio Amplifier<br> Model: AK45 Pro<br> Audio Channel: 2.0<br> Rated Power: 50W+50W<br> Max Output: 820W<br> Bluetooth: 5.0<br> Battery for Remote: AAA x 2 (Not Included)<br> S Ratio: 85db<br> Distortion Rate: 0.5%<br> Rated Frequency: 20-20KHz<br> FM Frequency: 87.5-108MHz<br> Feature: Treble/Bass/MIC Vol Adjustable<br> Input Option: BT/USB/SD/RCA/MIC<br> Output Option: Wired Passive Speaker<br> Speaker Impedance: 4-16 ohms<br> Max. Capacity of U-disk: 64G<br> U-disk File Format: MP3/WMA/APE/FLAC/WAV<br> Note: The battery for remote is not included, Pls buy it yourself.<br> Plug Type: EU Plug, it applies to Indonesia, Germany, France, , Italy and so on<br> voltage: 90-240V<br> Material: plastic<br> colour: Black<br> Package Contents:<br> 1 Amplifier<br> 1 x Remote Control<br> 1 Cord<br> 1 x Radio Antenna<br> 1 x English User Manual<br> Only the above package content, other products are not included.<br> 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.