Features: 1. 5.1 Surround Sound, High-Power Amplifier, Bluetooth 5.0, Usb Flash Drive Card (Not Included), Dual Microphone Inputs2. Wireless Bluetooth, Lossless Decoding, Dual Microphone Interface, Super Bass, Karaoke Reverb3. 5.1 Surround Sound, Cinematic Immersive Experience4. High-Power Amplifier, Dual Microphones For Karaoke, And Reverberation Adjustment5. Lossless Decoding Mode, Listen To High-Definition AudioDescription:1. Amplifier type: HIFI2. Output impedance: 4-163. USB: support4. Microphone: Support5. FM radio: supported6. Remote control: supported7. Bass adjustment: support8. Amplifier channel: 5.19. Rated power: 200W+200W10. Bluetooth: support11. SD card: support12. Reverberation adjustment: support13. FM frequency range: 87.5-108MHz14. Treble adjustment: support15. Harmonic distortion: Less than 1KHz 0.05% 4W16. Treble control: 10KHz12dB220mV 47K17. Bass control: 100Hz12dB 220mV 47K18. Frequency response range: 20Hz-20KHzPlug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onVoltage: AC220VMaterial: Aluminum alloycolour: blackPackage Contents:1 Amplifier1 AdapterOnly 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.