Extendable bass chamber with Cable groove on the buttom                      
 Rechargeable Li-ion Battery inside
 Similar with X-MINI II
 Rated power: 3W
 Frequency response: 100-20KHZ   
 SNR≥80dB
 Speaker drivers: 4.0cm, 2W/4Ω
 Output: 3.7V/400MA 
 Distortion: ≤1.0%
 Size: H45-58×D60mm
 Weight: 84g
 Packing: blister