1、Wireless bone conduction Bluetooth headphone, lightweight structure design, comfortable to wear. 2、Vibrating ear bones to transmit sound, without the interference of electric current, the output is melodious and beautiful music. 3、The fully enclosed sound cavity prevents daily rain and sweat from infiltrating, and can be simply wiped. 4、Under normal temperature and full power, it can play continuously for 5 hours and 7 days long standby. 5、Bluetooth 0, stable signal transmission, 10 meters barrier‑free distance for wireless listening to music and talking without delay. 6、Skin‑friendly soft rubber fit design, long‑wearing, one‑touch answering, suitable for outdoor sports. 7、Include the human ear hearing range of 20Hz-20KHz, enjoy a variety of melodic beauty. 8、Memory titanium alloy earphone frame, soft and durable, 360° bending, rapid rebound, no deformation. 1 x Headphone1 x Charging Cable1 x Manual2 x Earplug Item Type: EarphoneMaterial: Silicone + Titanium AlloyBluetooth Version: Bluetooth 5.0Speaker Type: Bone Conduction SpeakerBluetooth Transmission Distance: 10m / 32.8ft (Without Obstacles)Built-In Polymer Lithium Battery: 180mAhTalking Time: ≥5 HoursCharging Time: ≥2 HoursStandby Time: 7 Days