Big size speaker with strong bass effect

Specifications:

1) Output Power: 15W

2) Frequency Response: 80Hz-20kHz

3) S/N: 75dB

4) Lithium battery ,2000 mAh

5) Talking  time: 8-10 hours

6) Music time : 6-8 hours

7) Charge time: 3-4 hours

8) Charge Port: Micro USB 

9) Unit size:256*80*103.5mm 

10)Unit weight: 1.32KG

11)Package method: whitebox

More Features:

1) 15W bluetooth speaker , powerful sound.

2) Two speaker drivers, stereo sound

3) One subwoofer, strong bass

4) Built-in Microphone for handsfree        

5) Built-in 2000mAh lithium battery        

6) Patented amplifier IC, enhance bass 

7) Line-in function