Stereo-Lautsprecher

Stereo speaker for mp3 ,portable speaker for ipod.mp3 speaker as gift Cute stereo mini speaker with retractable resonator and built-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 capacity300MAH Polymer battery charging Voltage:4.2V±0.05V Distortion:≤0.5% AMP freq range:280Hz-16KHz Battery Charge time:DC 5V 200MA300MA around 2.5 hours;USB 4 hours Battery Discharge time:MP3 volume in 31mv,about 2 hours;MP3 volume in 20mv,around 8 hours(in the basic of volume level,music rhythm ect long or short of time)