The Phiaton 900 Legacy home/studio-style Bluetooth wireless noise canceling headphones have a closed over ear design. These iPod/cellphone-centric headphones can be used with the noise canceling feature turned on or off, and are intended for use with iPods, iPads, some other cell phones, as well as standard audio devices, and have a claimed reception range of around 33 feet and are intended for use with Bluetooth enabled audio devices including cell phones, as well as standard audio devices. It has a 51-inch detachable audio cord. The headphones have an inline microphone and inline remote with and integrated volume, music player function, and call connect/disconnect controls. Earcups fold and swivel to flat for ease of carrying and storage. Has touch sensitive volume, music player transport, call connect/disconnect, and digital voice assistant activation right earcup panel control. Has auto pause/play feature that pauses Bluetooth audio playback when the headphones are removed from the head and resumes playback when the headphones are placed back on the head. Headphone vibrates and issues alert tones to warn when it is moved out of transmission range of the Bluetooth source device. Allows simultaneous connection of two Bluetooth devices. Has power on/off, Bluetooth pairing, Bluetooth connect/disconnect, and low battery voice announcements, and noise cancelling and ambient sound monitoring status alert tones. Has quick charge feature: 10 min. of headphone charging will provide 4 hrs. of playtime. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. The 900 Legacy comes with USB-A to USB-C charging cable, Carrying case and is covered by a 12-month parts/12-month labor warranty.