Feature:1. Bone conduction technology and design, through the cheekbones to conduct music, make the ears full open to the surrounding sound, and can maximize the recognition of the situation when wearing for long time.2. Wireless headset is connected with BT5.0, convenient multi-point pairing, compatible with for iOS and for BT compatible smartphone or tablet PC.3. Designed for long-term wear, light and flexible, you can also use it freely for a long time.4. Reduce natural sound leakage and ensures optimal running audio.5. Professional manufacturing, stable performance and high reliability.Specification:Condition: 100% brand newItem type: Wireless Bone Conduction Headset Material: plasticColor: As picture shownWeight: Approx. 135g Bluetooth solution: for QCC3003Bluetooth version: 5.0Transmission distance: about 15 metersBattery type: lithium batteryBattery capacity: 170 mAhStandby time: about 15 daysDuration of use: about 5 hours Package List:1 x Earphone1 x Data cable2 x Ear plug1 x Instruction