Waterproof, secure, 16 hours of battery life and fast charging – Firefly’s wireless earbuds gives it all. The perfect design to fit your ears without falling out, even doing sports, jumping or hiking. You can charge them twice as fast as other earbuds: 10 min charge – 2 hours of music, 30 min charge – 4 hours of music. Enjoy Ambient Sound Mode to turn off the sounds around you or keep them.