2013 Newest High Quality Portable Music Player Mini Bluetooth Speaker 1.For Mp3/Cellphone/Computer/Tablet 2.DC5V ... 3.CE,RoHS Home Cinema Player Mobile Phone Portable Mini Bluetooth Speaker Features1. Power Supply: DC5V Buil-in Li-ion ... . Distorition: ≤ 0.1%3. Frequency Response: 90HZ-20KHZ4. Special Features: Mini,Portable,Wireness5. SNR: ≥ 80db6. Sensitivity: 80db ± 2db7. Type: Active8. Color ...