New Ultra Portable With Microphone Handfree Bluetooth Waterproof Speaker Built-in rechargeable Lithium-ion battery 400mAh 

Bluetooth V3.0 + EDR

Solution: RDA
BT Version: V2.1+EDR
Support mp3/TF, Waterproof!
DC:Built-in rechargeable Lithium-ion battery 400mAh
BT Protocop: A2DP, AVRCP, OPP, SPP
BT Distance: 10m
Bluetooth v3.0 compliant
Up to 3 hours of continuous play
Speaker nominal inpedance: 4Ω
Frequency Response: Frequency:280Hz-16KHz
Built-in Mic,Handfree for phone

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