Features 
Wireless Bluetooth streaming
Wirelessly stream high-quality sound from your smartphone or tablet.
5 hours of playtime
Built-in, rechargeable Li-ion battery supports up to 5 hours of playtime.
Waterproof design
The waterproof housing makes GO 2 perfect for worry-free listening by the beach or poolside, or even in it.
Speakerphone
Enjoy crystal clear conference calls over your speaker with the noise free speakerphone.
Audio cable input
Don't worry if Bluetooth is not available, plug the audio cable into the speaker and enjoy your music all the same.

Specification:
Bluetooth version: V4.1
Battery: 3.7V/500mAh
Working time:4-5 hours
S/N:≥80db
charging time:2 hours
Frequency: 180Hz-20kHz
Weight: 184g
size:71.2x86x31.6mm
Colors:Black,red,blue,light green

Packing :
1 x JBL GO 2  Bluetooth speaker
1 x Micro USB cable