Firstsing portable solar waterproof bluetooth2.1 vibration speaker

Description:
"1) Solar Bluetooth speaker with FM Radio
Solar panel"
2) Sensitivity micro bluetooth speaker
3) Call pick up/hang up function,volume can be adjusted.
"4) Built in li-ion battery capacity 600mAh
Mini USB power charging port"
5)Packing : 1x USB charging cable,1 user
6) manual,1x Bluetooth speaker
7)Built-in micro sd card slot,support micro sd card reader
8) Main material:ABS

Specification:
bluetooth Version: 2.1
RF range: 10M
Frequency response: 100Hz-20KHz
Playback time: 3-6hours ( in maxmium sound )
Charging time: about 3 hours
Charging input: 5.0V