Description: Bone Conduction Headphone: Bone conduction technology, ergonomics design, lightweight, not easy to burden the ears, ensure maximum comfort during extended wear. 180 rotatable, support left and right ear wearing. Bluetooth 5.2: Provide fast and stable pairing, long range connection up to 15m. Long Standby Time: Built in 300mAh large capacity battery, LED digital display screen, see your battery level at a glance. 2h charging time, offers 25h music time playtime, 60h talk time, 60 days standby. Noise Canceling: Built in HD microphone, block out disruptive background noise like wind, traffic or crowds, allowing you to enjoy high quality music and clear phone calls wherever. Multi function Control: The Wireless Headset equipped with button to play / pause music, previous/next track, Volume+ /-, call answer/ end /reject / redial, support voice assistant and call reminder function. IPX 5 waterproof, Suitable for business, office, driving, sports, etc. Specification: Product size: 6.2x5.4x1.3cm/2.44x2.13x0.51inch material: plastic Bluetooth version: V5.2 Speaker: bone conduction vibrator speaker Battery capacity: 300mAh Charging voltage: 5V Standby time: 60 days Talk time: 60 hours Listening time: 25 hours Charging time: 2 hours Bluetooth distance: 15 meters Frequency: 20Hz-20KHz Impedance: 32 ohms Sensitivity: 85dB/mW Waterproof grade: IPX 5 Package Includes: 1 Piece Bluetooth Headset 1 Piece Charging Cable 1 Piece Manual