Metal Sport-Beat BT008

Superior stereo sound for high-quality music and audio
Stylish, light, comfortable headphones suitable for all occasions from sports to everyday work
Many ways to listen: Bluetooth-enabled for wireless, aux cable for non-Bluetooth enabled devices, and microSD card port for use as an mp3 player
Built-in audio controls for controlling volume, music and answering calls
Up to 7 hours of continuous listening time from one battery charge
Specifications:

Version: Bluetooth V4.0
Transmit range: 10m
Music Time: up to 7 hours
Charging Input: micro USB cable
Battery: Rechargeable lithium-Ion battery
Charge Time: <3h
Distortion: <1% at 1kHz
Net weight: 24g