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Rechargeable wireless portable amplifier /speaker with USB/FM radio 

Model:NDT-200	Distortion: 0.1%
Specification	Optional:wireless/buetooth/color/Guitar  input
Output power: RMS 20W	Storage battery:12V/2.6A
Rated impedence:4Ω	Frequency respones:45Hz-18KHz
SNR: 87±3dB	Packing Size:260X88X148mm
Speaker unit : 4" +1"
Description:
1.    Built-in USB and SD memory card function, Support MP3 music format
2.    With FM Radio,  Guitar input
3.    With Karaoke function,2 microphone socket input
4.    Volume, bass, treble, echo, mic-volume separately control
5.    Compatible with PC/PHONE/MP3 and other audio input

Rechargeable wireless portable amplifier /speaker with USB/FM radio