RavPower Wireless Sports Headphones Bluetooth 5.2 High sound quality. Very long running time: A single charge powers 80 hours of listening (volume set around 50%). High quality sound: Oversized 10mm drivers deliver rich sound and a true listening experience. Fast charging via USB-C A 10-minute charge gives you 20 hours of playtime. Elastic neck band: Lightweight, smooth, and ergonomically designed for all-day comfort. Magnetic earbuds: Combined for power off, while separate for powering on and pairing. Bluetooth version: V5.2 Range: 10 m / 33 ft. Input: 5 volts, 1 amp. Charging time: two hours. Operation: 80 hours. (Varies with volume) IPX5 water resistant. Magnetic (on/off)