mini speaker with li-ion battery and USB slot for

Specifications: Power:2W Impedance: 4 ohms Distortion: 0.5% Frequency response: 65Hz-20KHz 3db Available USB power Product Features: 1. Elegant, graceful appearance, the new dynamic model to achieve the combination of music and artistic beauty. 2. PC USB charging lithium batteries available. 3. High-capacity lithium Overlord in portable speakers. 4. Built-in digital amplifier to increase the sound quality. 5. The surface of rubber paint, handle delicate, exquisite workmanship. 6. Saving features, adjust the medium volume can be used more than 4 hours. 7.suitable for: MP3, MP4, NOTEBOOK, PDA, PSP, PC, MD, walkman, IPOD, mobile phones and other digital devices. 8.Small cool shape, trendy, personalized with color, fresh and natural. 9.anti-traditional design concepts, unique novel with only egg speakers the size of the body, set amplifier, battery, dual speakers in one. First patent technology "telescopic extension resonance cavity" to solve the mini-speaker narrow cavity resonance problem, the speakers will shape the decades specification limits, compressed to the limit! 10.do not need a long audio cable, no external power supply, beautiful music anytime, anywhere, free to enjoy. 11.mini speakers, built-in high-capacity lithium-ion rechargeable battery can be recharged via its USB port, without having to replace batteries frequently tired, save money and peace of mind. While at the same as a mobile emergency battery pack for mobile phones, MP3, MP4, PDA, digital cameras and other electronic devices power supply. Product Configuration: Boxed USB data cable with multi line 1