The Bose QuietComfort Earbuds II portable Bluetooth wireless noise canceling earphones have a isolating ear-insert design. These iPod/cellphone-centric earphones 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. The earphones have an inline microphone and inline remote with and integrated volume, music player function, and call connect/disconnect controls. Additional features include that either earphone can be used alone for one ear monitoring of Bluetooth streamed audio and telephone communications. Charging/carrying case has built-in rechargeable battery that the manufacturer claims can be used to recharge the earphone batteries up to 3 times (to add an additional 18 hrs. of playtime for a total of 24 hrs.) between its own charges. Manufacturer claims water resistance (IPX4). Default setting provides touch control on both earphones to toggle between fixed maximum noise cancelation and full ambient monitoring modes. The Bose Music app can be used to add up to two more custom modes that are user adjustable between maximum noise canceling and full ambient sound monitoring, with the custom modes labeled with a choice from 10 names. Has ActiveSense feature that when enabled using the Bose Music app automatically reduces sudden or loud sounds when using the ambient sound monitoring mode. Has touch controls for music player play/pause, skip/prev track, call connect/disconnect, and volume. Has programmable "shortcut" touch control that can be used select between noise cancellation/ambient sound monitoring or voice control activation. Automatically pauses audio when either earphone is taken out of the ear and resumes when the earphone is replaced in the ear. Has CustomTune sound calibration feature that sends out a chime and uses built in microphones to optimize noise cancellation and sound performance based on ear canal shape. Has Bluetooth connection and battery level voice announcements. Supports mobile device voice control when used with Bluetooth connected devices that have that feature. Has quick charge feature: 20 min of charging will provide 2 hr. of playtime. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. Bose Music app download for Apple and Android mobile devices can be used to enable/disable auto pause function, adjust EQ, check ear piece fit, adjust the earphone's noise cancellation/ambient sound monitoring levels and change noise cancellation levels of the ambient noise level control button, enable/disable "shortcut" touch control and choose shortcut function, turn off voice prompts, manage paired Bluetooth device connections, check battery levels, and update firmware. The QuietComfort Earbuds II comes with 3 pairs of ear pieces and 3 pairs of ear bowl supports in various sizes, USB-A to USB-C connector charging cable, charging cradle/recharger battery/carrying case and is covered by a 12-month parts/12-month labor warranty.
