1. Function 1:bluetooth CSR 2.1+EDR  compatible under 3.0 version
2. Function 2:LED lighting controlled by touch.
3. Input: 5V
4. Operating voltage: 3.3V-5V
5. Output power:3W, powered by USB cable or built-in lithium battery 
6. Frequency response:20Hz ~20kHz
7. S/N:≥80dB.
8. Cell:Lithium cell
9. Applications:Mobile phone, Ipad, MP3 etc.
10. Playing time: 4 hours
11.Loudspeaker:high quality speaker with 16 core and double magnets.