Wireless FreedomListen to music, podcasts and more without tangled wires or the need to plug in to your device. Deliver HiFi Sound QualitySmall iTweet Air delivers deliver superior sound quality. Comfort with DurabilityProtected by a quality, sleek-looking aluminum shell. Built with medical-grade silicon for comfortable fitting WaterproofIP67 rated, it can be submerged in water and keep on playing. 30-Hour Playing TimeLong battery life extends playing duration, not standby time. Doubles as a Portable ChargerWhen needed, it can be used to charge ear buds and your mobile devices.