The jump to truly wireless audio has never been easier. From quickly pairing to your phone, to 16 hours of battery life, to a pocket-sized portable charging case, Indy makes living life without wires the simple experience it&';s meant to be. BluetoothA(R) Wireless Technology Removable Stability Ear Gels for Secure Fit Up to 4 Hours of Playback Charging Case with 12 Additional Hours Playback (16 hours total) IP55 Sweat, Water and Dust Resistant Call, Track and Volume via Touch Controls Noise Reduction for Calls