QuietComfort Ultra Earbuds (2nd Gen) offer all the same features as their predecessor, QuietComfort Ultra Earbuds, plus:Improved call quality through AI-based background noise suppressionWireless chargingImproved ActiveSense (adaptive noise cancellation) technologyCase battery level reporting in the Bose appOption to disable touch controls via the Bose app

The left and right earbud surfaces are the same, but the controls vary depending on whether you are listening to audio or on a phone call.When listening to audio:Swipe up or down for volume controlTap once to play or pause contentTap twice in quick succession to skip forwardTap three times in quick succession to skip backPress and hold the earbud surface to access a favourite listening mode, and release when the desired mode is announced. The default shortcut function on both buds is to cycle through three listening modes:Quiet Mode (full noise cancelling)Aware Mode (full audio transparency to

Bose QuietComfort Ultra Earbuds (2nd Gen) utilize both passive and active noise reduction technologies. Passive noise reduction is similar to when you wear earplugs; there is a physical blockage preventing some of the sound from entering your ear. This is achieved through the earbud design with materials, such as silicone eartips, and the acoustic seal created by having a proper fit. For active noise cancellation, your earbuds use sophisticated proprietary electronics with microphones both inside and outside the earbuds. The electronics system senses the sound in almost any environment and the