From electronic to jazz, the GT220 will not disappoint. The 8mm dynamic drivers deliver rich accurate bass, detailed midrange and clear, precise treble. Grado’s GT220 offers Bluetooth 5.0, Apt-x and AAC compatibility. A battery life of 6 Hours with an additional 5 full charges stored in the case for a total charge of up to 36 hours. The storage/charging case offers Qi compatible wireless charging as well as USB-C charging. The design of the GT220 is comfortable so you can enjoy hours of listening. The sensible touch controls mean ease of use for listening and phone.