Sell mini speaker

mini speaker
1) Supports all music playing mobile phones and smartphones
2) Easily receive incoming phone calls by a press of a button on the
speaker and talk through built-in microphone
3) 2 anti-magnetic speakers ensures the sound is good and doesn't
influence phone call quality
4) 3.5 mini jack connects to most portable audio devices such as PDAs,
MP3/MP4 players, CD players, MD players ad laptops
5) Power source: 4 AAA alkaline batteries or power adaptor

1) Output power: 3W x 2
2) Distortion : 0.5% 1W, 1kHz
3) S/N: >= 80dB
4) Frequency response: 100Hz-20kHz (-3dB)
5) Separation: >= 40dB
6) Impedance: 40(Ohms)