Bose QuietComfort® Ultra Earbuds True wireless noise-cancelling in-ear headphones (Black)

Features

Overview: The Bose QuietComfort® Ultra Earbuds feature the world's most effective noise-cancelling technology and Bose's CustomTune™ Technology that helps adapt the earbuds to your unique ears and ear canals. The individual left and right wireless earbuds come with soft silicone eartips for all day comfort, and stability bands for a more secure fit. The QuietComfort Ultra come with a sleek charging case, USB-C charging cable, three pairs of eartips, and three pairs of stability bands.

Bluetooth 5.3: The QuietComfort Ultra feature Bluetooth 5.3 and operate at a range of up to 30 feet from your paired device. They support SBC, AAC, and aptX adaptive codecs. Users with Android devices can enjoy simple, fast pairing with Google Fast Pair. When you turn on the headphones, a Google Fast Pair pop-up window appears for rapid setup of the devices.

aptX Adaptive: AptX Adaptive helps to maintain the best sound quality and provide a solid wireless connection. When the Bluetooth connection is less than ideal, the earbuds will slightly lower the audio quality in order to obtain a stronger wireless connection to your device, thus avoiding audio dropouts. When you have a strong wireless connection, the QC Ultra earbuds boost the sampling rate from 44.1kHz to 48kHz for higher audio quality and lower latency. Android users can take advantage of Snapdragon Sound on certain certified devices for superb audio quality.

Fitting the Earbuds: The QuietComfort Ultra come with three pairs of soft silicone ear tips. The ear tips rest at the opening of the ear canal to create a comfortable seal for optimal noise cancelling and audio performance. Stability Bands rest against the ridge of the ear for better stability. The eartips come in small, medium, and large sizes, while the Stability Bands are marked Left and Right with sizes numbered as 1 (small), 2 (medium), and 3 (large). The medium ear tips and Size 1 Stability Bands are installed on the Earbuds at the factory. An ear tip sizing tutorial in the Bose Music App helps you to find the correct size of ear tip.

CustomTune Technology: QuietComfort Ultra features CustomTune technology which optimizes the earbuds to your ear shape. Once you have chosen the best fitting ear tips and Stability Bands, you should run the CustomTune procedure to analyze and learn your ear canal's unique shape. The buds send out a chime which bounces back and gets picked up by the built-in microphones. The Earbuds auto-adjust the noise cancellation and sound performance based on the shape of your ear.

Immersive Audio: Bose's new Immersive Audio makes your music sound as if it's coming from beyond the earbuds. It gives it a wider sound stage in the front and on the sides for a more spacious listening experience. You can choose from two Immersive Audio Settings. The Motion setting makes your audio sound as if you're listening to two stereo speakers in front of you, and the sound stays in front of you, even when you turn your head. This setting works best when you are moving or have to turn your head or look down frequently. The Still Setting sounds like two stereo speakers that don't move with you--they stay in place. This setting is best suit to when you are sitting stationary. Immersive Audio shuts off temporarily when a phone call comes in. It can be turned on or off as you choose.

Water/Sweat Resistance: The Bose QuietComfort Ultra have an IPX4 rating for their resistance to sweat and splashing water from any angle. The inside cavity of the Charging Case is also resistant to water and sweat that may remain on the earbuds after use. The earbuds and charging case are not waterproof, and should not be submerged.

Listening Modes: Bose QuietComfort Ultra have the same noise-cancelling performance as their best over-ear headphones. It starts with a high degree of passive noise reduction from the soft silicone ear tips that conforms to the contours of your ear canal for a gentle seal. A strong airtight seal not only blocks outside noise, it enhances the bass so your music is more full and vibrant. The earbuds' microphones pick up ambient sounds in your environment. An equal, but opposite signal is produced in the earbud to cancel out this unwanted noise, leaving only your music content or phone call. The following Listening Modes are offered:

• Quiet: The earbuds use full noise cancellation with Bose-optimized audio to block out distractions.
• Aware: The Aware mode lets you enjoy your audio while providing full transparency, allowing you to hear your surroundings. ActiveSense™ technology helps protect your hearing by reducing sudden or loud noises.
• Immersion: The earbuds are set to full noise cancellation with Immersive Audio set to Motion, allowing you to enjoy an immersive listening experience without distraction.
• Custom: Using the Bose Music app, you can create up to seven custom noise cancellation modes that are somewhere between full noise cancellation and full transparency, based on your listening preferences and environment.

Bose Music App: The Bose Music App helps you to enjoy your Quiet Comfort Ultra even more. The app aids you in setting up and controlling your earbuds from any smartphone or tablet. In the app, you can select an action, such as checking the battery level or skipping a track, and save it as a Shortcut. The Bose Music app makes pairing easier and faster, lets you choose your voice prompt language, and manage your earbud settings. You can use the app to easily browse your favorite music sources. An equalizer in the app lets you adjust the bass, midrange, and treble to suit your listening preferences. The app is available from the App Store for iPhone, iPad, and iPod touch running iOS 15 or later, and from Google Play for Android devices (version varies with device).

Touch Controls: Each earbud has a large touch surface area for controlling music playback and phone calls. Tapping or swiping the touch surface of either earbud lets you play/pause your music, skip to the next or previous track, increase or decrease the volume, and answer/end/decline a phone call.

In-ear Detection: Sensors in each earbud identifies when you're wearing one or both earbuds. In-ear Detection is used for automatically triggered actions:

• Auto Play/Pause: During music playback, the audio pauses when an earbud is removed. Reinserting the earbud resumes music playback.
• Auto Answer Call: You can answer an incoming phone call by inserting the right earbud. This feature is enabled/disabled in the Bose Music App.
• Auto Transparency: When listening with Noise Cancelling enabled, removing an earbud causes the remaining earbud to adjust to full transparency. When the earbud is reinserted, both earbuds return to the previous noise cancelling level.

SimpleSync: Bose's SimpleSync technology lets you connect the earbuds to a Bose Smart Soundbar or Bose Smart Speaker to listen in private. SimpleSync uses Bluetooth to connect, giving you a range of up to 30 feet. You can control the headphone volume independently of the Smart Soundbar or Speaker. Compatible products include Smart Soundbar (models 900, 700, 600), Smart Speaker 500, Home Speaker 500 and 300, and Bose Portable Smart Speaker or Portable Home Speaker. You can also connect the headphones and speakers using the Bose Music app.

Power Options: The Bose QuietComfort Ultra are equipped with Lithium-ion rechargeable batteries which provide up to 6 hours of playback time on a full charge. The Charging Case also has a Lithium-ion rechargeable battery that can recharge the earbuds an additional three times for a total of 24 hours. The earbuds charge in the Charging Case in approximately 2 hours. A 20-minute Quick Charge provides up to 2 hours of playback time. The Charging Case battery charges in about 3 hours when plugged into a USB power source via the included USB-C cable. LED status lights on the front of the Charging Case indicate the charge status and battery level of the case. You should only charge the earbuds and case when they are at room temperature (46°F-102°F).