1、Comfortable and lightweight design: Our bone conduction Bluetooth headset adopts a fully‑wrapped design, which can neatly surround your head and ears, creating a more stylish fit and will not slip during long‑distance driving or exercise. 2、Long‑lasting battery life: Equipped with a 170mah rechargeable battery, the talk mode can be up to 15 hours, and the music mode can be used for about 13 hours. The Bluetooth headset provides a reliable listening and dialing experience for home, travel, exercise and use. 3、High‑fidelity audio and microphone: Our open earphones provide dynamic range and deep bass, providing you with the top‑notch sound quality for any type of music, and have a built‑in microphone for hands‑free calling. 4、Innovative earphones: a smart alternative to earbuds or broadband earphones, the leg cords provide you with high‑fidelity sound, enhance comfort and clarity, while not restricting outside sounds. 5、Advanced Bluetooth stable connection: 5.3 Bluetooth headset can be connected to a variety of your favorite Bluetooth compatible devices, including smartwatches, tablets, compatible for iOS/Android devices, etc. Product model: BL09 Material: ABS Color: black/red/blue/green Bluetooth version: 5.3 Battery capacity: 170MAH Music time: 13h Talk time: 15h Bluetooth connection distance: 10 meters Support protocol: HSP/HFP/A2DP/ AVRCP Horn material: double composite membrane horn 1*Bone Conduction Bluetooth Headset 1*USB Charging Cable 1*Instruction