Helmet Bluetooth L027

Specifications:
BT version: 5.0
Frequency: 2.402GHz-2.480GHz
Range: 20-30 meters (depending on device)
Transmission distance of Microphone: 1 meter
Li-ion battery: 3.7V180mA
Playback time: 8 hrs
Charging Voltage: 5V
Charging time: 1 hrs
Standby time: 160 hrs
Features:
Wirelessly listen to music with integrated BT technology.
Fashion design, let music surrounding your lifetime.
Hands-free function, truly free your hand.
Set-in rechargeable Li-ion battery, long stand- working time.
5.0 BT chip, Hi-Fi earphone.
Support power displaying on iPhone, easy to know when the will to be charged.
DIY design, available to be detachable when you want.
Sound reminder function, easy to set the device according to sound remind.