Extendable bass chamber with retractable cable
 2 in 1 USB port
 Rechargeable Li-ion Battery inside
 Similiar with X-MINI
 Rated power: 2W
 Frequency response: 100-20KHZ    
 SNR≥89dB
 Speaker drivers: 3.6cm, 2W/4Ω
 Output: 4.2V/250MA
 Size: D52×H36-53mm
 Weight: 50g