Firstsing Portable Bluetooth 4.0 outdoor waterproof Bluetooth audio speakers

Description :
1) High quality Sensitivity micro bluetooth speaker
2) Support Iphone, ipad and most of Bluetooth audio device
3) Call pick up/hang up function
4) Built in li-ion battery capacity
5) With voice reminder function in each mode
6)Last call re-dial
7)With hanger can be hang on the bag
8) Main material:ABS
9)Packing : 1x USB charging cable,1 user manual
10) Built in TF card slot ,Support TF card playing

Specification:
bluetooth Version: 4.0
RF range: 10M
Frequency response: 100Hz-20KHz
Playback time: 3-5hours ( in maxmium sound )
Charging time: about 6 hours
Charging input: 5.0V