Good Bluetooth Music Quality Bluetooth Speaker Mini for Phone Hand Free

1.Dimension:                     89*89*48mm.
2.Bluetooth:                       V4.1+RDA-9623, Support A2DP (with BQB certification)
3.Signal Noise Ratio:          > 86dB
4.Frequency Range:          2370~2510MHzl
5.Transmit Distance:          > 15 Meters
6.Frequency Response:    90Hz~20KHz
7.Rated frequency:            2.40-2.510(HZ)
8.Battery:                           600mAh Lithium Battery   
9.Playing Time:                  4-5 Hours                                                                         

10.Output:                          3W.                                                                                      

11.Speaker:                        4R/16 chip dual magnet.                                                                    

12. Audio input:                  stereo line in.
13.Acc:                               3.5mm Audio Cable & USB micro Charging Cable and manual.                         

14.Main material:                ABS.                                                                          

15.Support 2 phones match and control the speaker at the same time.                                                         

16.Main function: bluetooth music, hand-free call, 360 degree surround sound, long time using, super sound quality, Intelligent voice. 

17.Good bluetooth speaker quality, without any nosie when full volume.