Durable, lightweight and ready for adventure! Flye Sport Rush gives you 10 hours of playtime and a charging case for 36 hours of total battery life. Short on time? Its BurstCharge technology gives you an hour of playtime on a 10-minute charge. Want to run in the rain? The IPX5 rating can handle sweat and light rain. And unlike most earbuds, Flye Sport Rush has Class 1 Bluetooth for superior signal quality and improved outdoor performance.