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Sennheiser Momentum True Wireless 4 review: redemption never sounded so good

The same fantastic audio quality — now with fewer bugs.

But through a number of under-the-hood tweaks and other more subtle improvements, Sennheiser has taken aim at the connection issues, software bugs, and quality control concerns that hindered the potential of its third-gen buds — to the point where some buyers had said, “Never again.” Sennheiser’s adaptive noise cancellation analyzes your environment to apply the right level of ANC on the fly, and while it can’t match up with class leader Bose, it was more than enough to help me tune out a crowded subway car and enjoy my music. Auracast is a nascent Bluetooth capability that will let “transmitter” source devices like phones, laptops, televisions — and even public address systems — broadcast audio to a large number of “receiver” products like earbuds, headphones, speakers, or hearing tech that are within range.

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