These lightweight (21g) headphones are suitable for sports, such as outdoor running and cycling. 
 
* Open ear listening design
* Comfortable to wear
* Air Conduction Technology
* Directional audio technology
* Built in Microphone for handsfree phone or online calls
* Good range with stable connection via BT5.0
* Smart touch for phone call & music control
* Ecological diaphragm speaker for 6d panoramic sound. Hifi audio output brings you premium audio enjoyment.
* Ergonomics design suitable for sport, not easy to fall off.