No Wires, No Limits! Zolo Liberty+ earphones are one of the first total-wireless earphones to utilize graphene-enhanced driver technology. An innovation that delivers immersive audio with crystal clarity and soaring treble. Thanks to its extended 40-hour playtime (using the included battery case), Liberty gives wireless freedom to the most music-hungry listeners. These earbuds are easy to set up with Push and Go technology and you can double tap on an earbud to activate voice assistant. Liberty eartips and jackets come in multiple sizes and are engineered from a super-soft liquid silicone for exceptional in-ear comfort. And if that is not enough… they are sweat resistant, ideal for sweating it out at the gym or singing in the rain. This is the future of personal listening.