Bose’s QuietComfort Earbuds II automatically customize sound and ANC

Apple wasn’t the only company with new true wireless earbuds debuting today. Bose also has a new model on the way, the QuietComfort Earbuds II. As the name suggests, this set is an update of the first QC earbuds the company released in 2020. This time, the company has revised the design, optimized the fit and added powerful sound calibration technology. But all upgrades come at a price, as the QuietComfort Earbuds II will cost $20 more than their predecessor at launch.

Bose says these next-gen buds are about a third smaller than the previous version, which will be a welcome change. The first QuietComfort earbuds were quite large, so anything the company can do to decrease the overall size is an improvement. Bose explains that it has also changed the fit of the earbuds with what it calls a Fit Kit. Essentially, the ear tip now consists of two parts, with an oval tip and a “stability band” that keeps the buds secure in your ears. There are three sizes of each so you can mix and match the bases to see what works best for you. In addition, the Bose app offers a fit test that checks for an adequate seal by detecting leaks.

Inside, the QuietComfort Earbuds II are equipped with the sound calibration that Bose calls CustomTune. The technology was available in the company’s SoundControl hearing aids, but in this case it’s being used to improve a number of the earbuds’ core functions. By measuring the acoustic properties of your ear canal, Bose says CustomTune adjusts both the audio and active noise cancellation (ANC) to suit you. The process takes less than half a second and is completed every time you put the earbuds in your ears. The company goes on to state that CustomTune “fully optimizes the sound frequency profile to the unique characteristics of each ear, so the sound that reaches the eardrum is exactly how the artist intended it to be.” For ANC, CustomTune calibrates the noise-canceling signal, and Bose says its noise-canceling tech is better at blocking out human voices and crying babies. Plus, the ANC continuously adapts to any changes to keep distractions to a minimum.

Bose QuietComfort earphones II


CustomTune is also applied to the ambient noise of the QuietComfort Earbuds II. When you use this Transparency or Aware mode, a feature called ActiveSense can pick up loud noises and apply the appropriate level of rejection until it stops. CustomTune also helps the QC Earbuds II offer ambient sound that’s “as natural and lifelike as possible,” according to Bose.

The QuietComfort Earbuds II are IPX4 certified for sweat and water resistance, so you should be able to use them while you work out without any problems. Bose says it’s also improved call quality thanks to changes to the noise removal algorithm. And finally, with three more charges in the case, you can expect up to six hours of battery life. A quick charge function gives you two hours of operation in 20 minutes.

The QuietComfort Earbuds II will be available September 15 for $299, but you can pre-order them now. Only the black color option will ship on that date, but Bose plans to sell a “speckstone” version later this year.

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