7g. True wireless bluetooth connection that’s tangle-free
LONG BATTERY LIFE WITH PORTABLE CHARGING CASE: Built in lithium polymer battery, enjoy about up to 2.5 hours of premium quality Play time, up to 40 hours standby time. The small charging case (included) is so compact and so powerful that allow you to play extra 6 more hours
ADVANCED TECHNOLOGY: Bluetooth V4.1 EDR audio decoding technology, easier and faster pairing with smartphones, tablets, and other Bluetooth enabled music devices. Bluetooth reception distance up to 10 meters
IPX4 SWEATPROOF: With a durable design, Pure-Hub wireless earphones prevent against sweat and moisture damage thanks to its water resistant material. It is the best choice for use while running, exercising, jogging, and biking.