The Symphony 1 from Definitive Technology are a pair of Bluetooth, over-ear wireless headphones. They sport active noise cancellation which will work even without music playing, thus silencing your surroundings. These headphones are suitable for use with various devices such as portable phones, recorders, tablets, and more.
Sporting 50mm dynamic balanced PET drivers, these headphones are constructed out of aluminum and soft leather to provide a listening experience as comfortable as it is durable. Various controls built into the right earcup allow you to adjust volume, control the playback of audio, and take phone calls. An on-board beamforming microphone, also located in the right earcup, provides clear and hands-free telephone communication.
The battery life of these headphones is typically between 10 and 15 hours, depending on whether or not you have ANC (active noise cancellation) instantiated. A detachable 3.5mm auxiliary cable is included, and the headset can be operated with MP3 players and mobile devices, similar to conventional headphones. Also included are a USB charging cable and a handy carrying case.