Bose QuietComfort Ultra Headphones (2nd Gen) (Black) review

Bose · current U.S. configuration · Black QCUH2-HEADPHONEARN-BLK-WW

The QuietComfort Ultra Headphones (2nd Gen) make most sense for someone who wants active cancellation and several distinct ways to connect—not for someone who expects the label “Ultra” to settle questions of personal comfort or real-world quiet. Bose documents a 30-hour maximum in Quiet mode, Bluetooth multipoint for two devices, a powered analog cable, and digital USB-C audio. Those connection and power details matter more than a generic premium label. This source-based assessment does not claim hands-on use or measurements of cancellation, comfort, or sound quality.

Confirm the generation and finish

Bose’s U.S. product page identifies the Black finish on the QuietComfort Ultra Headphones (2nd Gen), product family QCUH2-HEADPHONEARN; the selected Black variant identifier is QCUH2-HEADPHONEARN-BLK-WW. Distinguish it from the earlier QuietComfort Ultra and standard QuietComfort models. Bose dates this generation to 2025 and describes additions such as USB-C audio and Cinema mode in its launch announcement. Its product page calls the fit around-ear/circumaural and specifies removable cushions, a built-in microphone, a listed headset mass of 0.583 lb (about 264 g), and no water-resistance or IP rating.

What changes across the regular finish options

The Black page is one exact color selection, not a stand-in for every QCUH2 finish. I checked Bose’s selected U.S. pages for Cherry Chocolate, Desert Gold, Midnight Violet, Driftwood Sand, White, and Olive Green, including the variant identifiers below. All seven standard-finish pages use the same QCUH2-HEADPHONEARN family, show the same 20 technical-specification values, and list the same accessories in the box. That comparison supports a shared functional assessment: no documented ANC, Bluetooth, weight, runtime, charging, USB-audio, or analog-mode change appears between these regular colors. It does not cover the separately identified KidSuper or Thom Browne collaborations, whose identities and packages need their own review.

The selected Bose pages report the analog cable as included and name the same 39-inch USB-C cable, case, and safety sheet in the package. The image filename Bose uses for the White swatch contains “WhiteSmoke,” but its selected U.S. option is labeled White and its variant identifier is WHT; the image shown here is the one returned for that selected White page. Finish availability can change, so check the exact color and variant code rather than relying on a generic family title.

Several noise-control modes, not a promise of silence

Bose documents Quiet, Aware, Immersion, Cinema, and custom modes. Quiet uses full noise cancellation; Aware lets in surrounding sound, with optional ActiveSense that dynamically raises cancellation when a sudden or loud sound occurs. Immersion and Cinema combine cancellation with Bose’s spatialized audio settings, while the Bose app is where custom modes and their settings are created. These modes expand the available control, but their names do not establish how well they will work for a particular listener. Fit and personal preference remain untested. The Bose mode guide is the better place to check the exact settings before relying on Aware or ActiveSense.

Bluetooth switching and codec compatibility

The Owner’s Guide says that up to six devices can be saved and two can stay actively connected at once. Only one audio stream plays at a time: pause one source and start the other to switch. Calls can reach the headphones from either connected device, and the Bose app can manage or disable multipoint. That makes the arrangement relevant for a phone-and-computer routine, but not for mixing two programs. Bose lists SBC and AAC as standard Bluetooth codecs; aptX Adaptive is available with a Snapdragon Sound-certified source. The latter is conditional on the source device, so it should not be treated as the default codec on every phone or laptop.

Thirty hours depends on the selected mode

Bose rates playback at up to 30 hours with noise cancellation on and Immersive Audio off, or 23 hours with both cancellation and Immersive Audio on. Bose’s launch notice lists up to 45 hours with ANC off. The manual’s separate 45-hour line is worded unclearly, so the launch notice is the clearer source for that ANC-off figure; it is not an ANC runtime. These are manufacturer maximums under specified Bluetooth music test conditions, not guaranteed flight time. A 15-minute charge is advertised for up to three hours, but the manual’s test note says up to 2.5 hours for the depleted-battery procedure it describes. That difference is another reason not to rely on a quick-charge headline as a fixed promise.

Wired use has two distinct routes

The supplied analog cable runs from a 3.5 mm source to the headphones’ 2.5 mm port. Bose says the headphones must be powered on to use it; if their battery is depleted, the manual directs the user to connect USB-C power and then switch them on. In AUX mode, the headphone microphone, Bluetooth, call handling, and media controls are unavailable, so audio and playback controls must come from the source. ANC is disabled when the headphones are off, which means there is no documented battery-free passive analog mode. The Owner’s Guide makes that limitation explicit.

USB-C is a separate digital-audio route, not just a charging port: Bose documents USB audio at 16-bit, 44.1 or 48 kHz for compatible sources, and says the headphones can be used while charging. This is a useful distinction for a computer or compatible phone, but confirm that the source exposes a suitable USB audio connection. The box includes a 39-inch USB-C-to-USB-C cable, carry case, analog audio cable, and safety sheet; a power adapter is not included. A buyer who needs passive listening after power loss should compare this with the Sony WH-1000XM6, whose documentation does support passive analog playback when switched off. Bose is the more explicit option here for USB-C digital audio; neither distinction is a claim about which sounds better.

App dependence and fit checks

Bose says ordinary Bluetooth pairing can be done from a device’s Bluetooth settings without the app, but the app is needed for the full set of adjustments and updates. Check app availability if you plan to customize modes, EQ, shortcuts, or multipoint behavior. Bose also says the product is not waterproof and should be kept out of situations where it may get wet. Its materials and removable cushions are published specifications, not evidence that a particular ear shape, glasses, hairstyle, or long session will be comfortable. A return policy may be a more practical way to evaluate those individual fit variables than a spec sheet.

Who should shortlist it—and who should pause

Its documented fit is strongest for listeners who will use powered ANC over Bluetooth, want two simultaneous device connections, or value both digital USB-C and powered analog wired audio. The full charge is rated at up to three hours; do not confuse a short top-up claim with continuous listening time. Pause if battery-free cable listening is essential, if an unpowered analog fallback is non-negotiable, or if your routine depends on microphone and call controls while wired. Before buying, verify the exact Black SKU, included two-cable package, host-device compatibility, and the retailer’s current return terms. Bose’s 30-hour maximum is a useful comparison point, not proof of personal fit, noise reduction, or actual runtime.