Latest Bone Conduction Bluetooth headphones The open-ear design helps you keep an eye on the vibrancy of the surrounding sounds and reduce traffic accidents and other hazards when listening to music. Ergonomic and anti-drop design, titanium wraparound headband is lightweight and flexible, great for durability and portability. Equipped with Bluetooth 5.0, bluetooth bone conduction headphones will quickly pair with most devices. 2 hours full charged and play music around 6 hours, standby time is 10days. Specification: Material: ABS+PC+Titanium Alloy Band Color: gray, blue, orange Size: approx. 122*117*47mm/4.41x4.61x1.85inch Bluetooth-compatible version: V5.1 Connection Distance: 10m MP3 Storage: 16GB Music Format: mp3, wav Microphone: -38dB Sensitivity: -90dB Battery Capacity: 3.7V 160mAh Music Time: ≥5 hours Charging Voltage: DC 5V Charging Time: about 1.5 hours Calling time: about 4h Waterproof: IP68 Package Contains: 1 * Bone Conduction Bluetooth headphones 2 * Waterproof Earplugs 1 * Charging Data Cable 1 * Instruction Note： 1. Do not buy if you have insufficient hearing! 2. Chinese and English bilingual manual. 3. If there is any problem with the product, you can contact us directly! We will solve the problems for you immediately.