2.0 Stereo Mini Speaker / Super mini speaker For iPod(KD-MSB021G)

Cute stereo mini-speaker with retractable resonator andbuilt-in
Lithium battery, can work with many audio players like mp3/4,laptop etc.

Shell materials: QIMEI ABS757
Speaker: MAGNETISM PREVENT(4φ )36MM*2W
Loudspeaker output: 2.2W
Rating power: 1.7W*2
Frequency response: 100HZ-22KHZ
Signal-to-Noise: ≥ 80db
Polymer battery capacity: 300MAH
Polymer battery charging Voltage: 4.2V± 0.05V
Distortion: ≤ 0.5%
AMP freq range: 280Hz-16KHz

Battery Charge time: DC 5V 200MA_300MA around 2.5 hours; USB 4hours
Battery Discharge time: MP3 volume in 31mv, about 2 hours; MP3volume in 20mv, around 8 hours(in the basic of volume level, musicrhythm ect long or short of time)