The JBL Synchros S700 Over-ear Powered Headphones are designed for playing back audio and taking calls from a variety of portable devices. Powered by its built-in rechargeable Li-ion battery, the S700s feature JBL's LiveStage DSP to recreate the spatial presence of listening to loudspeakers in a room. The headphones are also tuned with JBL's PureBass technology for accentuated low end. They are constructed with a stainless-steel headband and sport leather ear cushions for a comfortable fit. 2 cables are included: a 3-button iOS compatible remote/microphone cable, and a 3-button universal remote/microphone cable, allowing for control over many different devices. Additionally, a carry case is included for transport and storage.