High-Quality Sound: Oversized 10 mm drivers with a bio-cellulose diaphragm deliver rich sound with highly-detailed treble Neckband Bluetooth headphones: have a lightweight silicone neckband with a titanium alloy steel core to ensure a snug fit on your shoulders and superior shape retention. IPX5 Waterproof: A waterproof casing protects Life U2i neckband Bluetooth headphones against rain, water, and more. Perfect for Workouts: The ergonomic Earbuds are made of silicone, so they are comfortable, well fitted and very stable. Perfect to use while running, jogging and working out Ergonomic design: Comfortable Ergonomic in-ear design with soft silicone sweat-proof ear tips reduce outside noise, so you can enjoy music on the go Magic Magnet Attraction Technology: Absorbs or separates gently to turn the earphones on/off, abandons traditional button, novel and simple Its magnetic attraction design function can connect 2 earphones easily. Hanging on the neck like a necklace when not in use could avoid loss meanwhile it could be a cool amazing accessory for fashion users