2.0 USB stereo speaker Connect by USB and audio Driver unit:2 inch(52mm),full range,4ohm High quality bass Power: USB 5V Input sensitivity: 550±50mV RMS: 3WX2 SNR: >=95dBA THD+N (Amplifier): <=0.2% Frequency Response: 95-20kHz Support PC/notebook/MP3/MP4 etc.
