V28 Bone Conduction Earphone Bluetooth 5.2 Wireless Headphone Single Business Headset with Microphone For Running V28 Bone Conduction Earphone -compatible Wireless Headphone Business Single Headset with Microphone For Running Main control chip: Jerry BT chip: 7006 Waterproof level: IP5 Colour: Black Compatible system: IOS/ANDROID/WINDOWS Features: 5.2 wireless BT BT: 5.2 EDR Battery type: polymer lithium battery Headphone battery capacity: 110mAh Charging method: USB socket charging Headphone charging time: about 120 minutes Headphone battery life: about 20 hours Control method: button Appearance material: ABS Specifications: 1. The open-ear design not only keeps your ears clean, but also lets you hear your surroundings and your favorite music more cozily. 2. This wireless earphone adopts the latest BT 5.2 technology, which is suitable for most electronic devices. 3. This BT earphone is equipped with high performance battery, which can give you longer talk/play time. 4. It only takes 2 hours of fast charging, and the continuous call or music playback time can reach 20 hours. Package Included: headphone*1pc