The Bose QuietComfort Earbuds II are one of the most expensive wireless earbuds we’ve ever tested, and they claim to provide never-before-seen levels of active noise cancellation. We’ll see if they can deliver on that promise in our review. ..

Bose has come up with a way to customize both the audio response and noise cancellation of the QCE II to the individual user’s ear canal. CustomTune is the company’s proprietary technology, and it uses an audio signal – picked up by a mic inside each bud – to automatically calibrate ANC and sound frequency that best suits your ear. Bose doesn’t specify the details of the frequency response, but after using the QCE II for a while now, we’re estimating they go from ‘extremely deep’ to ‘very high indeed.’

The Bose SoundLink Mini is a Bluetooth speaker that uses two 9.3mm full-range dynamic drivers and is wirelessly connected. It has a Qualcomm S5 Audio chipset and can support SBC and AAC codecs.

The Bose QuietComfort 25 In-Ear Headphones are one of the best-selling headphones on the market, and they come with a number of features that are unique to them. One of these features is multipoint connectivity, which allows you to pair with two Bluetooth devices at the same time. This is more common in wireless over-ear headphones and hasn’t made it to true wireless models yet, but it would be nice to have. Wireless charging would be similar. This is also surprising given that competitors’ cases now support wireless charging, and the Bose is a pretty premium set of buds to forego this feature.