customized sticker snapback hats ,handfree speaking

-with bluetooth 3.0v
-led indicator
-build in mic
-rechargeable li battery

specification:

-Bluetooth type : Bluetooth 3.0 receiver
-Transmission distance : 10 Meter
-Frequency Response: 20HZ---20KHZ
-USB : High speed USB2.0
-Power : built in lithium rechargeable battery
-Using environment : -40°C -- +70 °C
-Play time : 6-8 hours

-Blue/Red LED lndicating
-Simple&Unique,Convenience Design
-Packing: Poly bag / gift box

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