Easy connect and extensive range: Bluetooth 5.0 BLE, enjoy 30 feet of uninterrupted connectivity. 10 hrs of play time: Lithium-ion battery lets you enjoy up to 10 hours of play time, rechargeable with USB power sources. Super bass and HD sound: These neckband bluetooth earphones deliver crisp HD sound, deep bass, clear mids and transparent highs. Magnetic lock: Magnetic lock helps to keep the earphones in place preventing them from falling when not in use. Hands-free: Power on, take calls and control your music with in-line mic and multi-function button.