Wireless Open Ear Headphones Bluetooth for Sports. Stay aware of the surroundings. Features: 1. The open-ear design completely frees the freedom of both ears, can be applied to sports and everyday life and is comfortable to wear.2. The bone conduction headphones use acoustic technology and stereo surround sound to create a multi-layered listening experience that makes the sound clearer and more natural.3.The wireless earbuds are waterproof IPX5 and resistant to daily splashes, sweat and rain, which are suitable for jogging, hiking, fitness exercises, fitness, etc.4. The new updated Bluetooth 5.1 chip, the wireless connection is faster and more stable.Specification:Bluetooth Version: 5.1Transmission Distance: About 10MPlaying time: 8 hoursPlaying time with charging case: 30 hoursCharging time: 90 minutesHeadset battery capacity: 80mAhBattery capacity of charging case: 400mAHSupport system: all devices and mobile phones that support BluetoothNotes:1. Please read the instruction manual carefully before use.2. If you receive a defective product or have any questions during use, please feel free to contact us.Packing list:open ear bone conduction headphones*1USB C cable*1User Manual*1