Specifation: 
The unit size is 21cm*7cm*6.7cm 
The unit weight is 200g 
Materials: ABS+PC 
Chipset: CSR BC6145 

Wireless Bluetooth Stereo Speaker w/ Passive subwoofer, Microhopne Hands free calling, bluetooth receiver adapter & playback controls for phones, tablets, MP3 MP4 players, Laptops and More. 

1. With Bluetooth Function 
2. Max. Power Output: 2W X 2 
3. Frequency Range: 150H2-20KH2 
4. Distortion: <1% 
5. Sensitivity: > 65 dB 
6. FM radio function and can use SD card(MP3, WHA, WAV). 
7. Power supplied: Built in Rechargeable lithium battery(charged by 5V Mini USB cable) 
8. Audio input: 3.5mm Audio Jack cable or Bluetooth(included) 
10. Accessories: Audio cable and USB Cable for recharging battery are included. 
11. Music play time up to 5 hours. 
12. Stand by time up to 550 hours. 

Package: Gift package. 
Host *1 
Lithium battery *1 
User Manual *1 
3.5mm Stereo Audio Line *1 
Mini USB cable *1