Life U2 neckband Bluetooth headphones sit effortlessly around your neck for all-day-wear without fatigue. Life U2 neckband Bluetooth headphones have well-balanced sound for daily listening, and switch to BassUp mode for deep beats. The 10mm oversized dynamic drivers are 20% larger than the standard ones to deliver music with detailed treble and up to 70% more bass. 24-Hour Playtime: A single charge delivers days of listening. And when you're in a rush, recharge Life U2 neckband Bluetooth headphones via USB-C for 5 minutes and enjoy 2 hours of playtime. IPX7 Waterproof: A waterproof casing protects Life U2 neckband Bluetooth headphones against rain, water, and more.