Prime Day is June 23 to 26, and Lifehacker is sharing the best sales based on product reviews, comparisons, and price-tracking tools before it's over. 

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• New to Prime Day? We have a primer on everything you need to know. Sales are accurate at the time of publication, but prices and inventory are always subject to change. 

The Bose QuietComfort Ultra Headphones (2nd Gen) are down to $379 right now for Prime Day (originally $449), which is the lowest price they’ve hit so far, according to price trackers. That drop makes them easier to consider (for more Prime Day discounts and shopping advice, check out our ongoing coverage), even with stronger competition this year from models like Sony’s WH-1000XM6. Bose hasn't changed the formula much in this second generation—you still get an over-ear design with plush padding and a firm but comfortable clamp for a secure fit. The only noticeable tweak is that the frame now uses a glossy metal finish instead of a matte one, which gives it a slightly more premium feel without changing how it wears.

The feature set is broad and mostly well-executed—these headphones support Bluetooth 5.4 with multipoint pairing, so you can stay connected to a laptop and phone at the same time without juggling settings. There is also a USB-C connection for wired listening, which unlocks lossless audio, something many competitors still skip. Plus, they power on automatically when you put them on and slip into a low-power mode when left flat, which is a small quality-of-life upgrade you notice quickly in daily use. Battery life is rated at 30 hours with active noise cancellation turned on, which is in line with most premium options. Bose also lets you charge and listen through USB-C at the same time, a practical addition for long work sessions.

Performance-wise, noise cancellation holds up well across different environments, taking the edge off airplane rumble, muting bus engines, and pushing most café chatter into the background, so you don’t have to keep adjusting volume just to stay immersed, notes this PCMag review. As for the sound, these headphones deliver a rich, bass-forward profile while keeping vocals and detail intact. Tracks with heavy low-end, like electronic or hip-hop, come through with depth and punch without overwhelming the mix, and vocals sound full, though the slightly recessed midrange means guitars and some instruments don’t cut through as sharply. Also, while you do get presets and noise control modes in the companion app, its simple three-band EQ does not give you much room to fine-tune the sound.

Looking for something else? Retailers like Walmart and Best Buy run Prime Day-style sales that are especially useful if you don’t have Amazon Prime.

• Walmart’s Prime Day competition sale runs from June 22-28 and includes deals up to 50% off. It’s an especially good option if you have Walmart+. 

• Best Buy’s Prime Day competition sale runs from June 22-28, and has some of the best tech sales online. It’s an especially good option if you’re a My Best Buy “Plus” or “Total” member.

• Target’s Prime Day competition sale runs from June 23-26, with deals up to 50% off. You can become a Circle member for free.