X3

* Wireless bone & air conduction technology
* Open-ear design to protect from hearing loss and keeping safe
* High quality stereo sound surrounding
* One click to answer / end the phone call
* Built-in microphone for high quality calling
* 18 hours playback time,20 days standby,2.5 hours charging time
* Bluetooth 5.0 efficient and stable transmission
* IPX5 waterproof
* 23 grams super lightweight
* Titanium(Ti) alloy headband free bending
The Price:$4.5-$5.8