Bone Conduction Design: The sound transmits through the bone to the auditory nerve, no need to put into the ear canal, no eardrum damage, good for the user to avoid ear disease and hearing losingBorn for Sports: IP56 waterproof, no need to worry about sweat and splashing water. Ergonomic and 25g lightweight design ensures wearing comfort and stability, suitable for hiking, running, cycling, climbing, driving, etcBT 5.0 Connection: BT 5.0 technology enables stable connection, fast transmission speed and low power consumption. Free to enjoy hands-free calls or BT music via BT connectionLong Battery Life: 150mAh rechargeable lithium battery provides about 8 hours of playback time on one full charge. And can be recharged via the included charging cable

Built-in lithium battery provides long endurance time.Ergonomic design, fit the ear canal, bringing comfortable and stable wearing experience.Fast pairing, just take the earbuds out of the charging case, the earbuds will automatically pair and connect with your mobile phone.