Denon - PerL Pro True Wireless Adaptive Active Noise Cancelling In-Ear Earbuds - Black

These sound amazing!! You will need to download the app and make personalizations to suit your needs. I have created 3 profiles which has allowed me to pick my preferred sound. After you create a profile that customizes to your ears, you have the ability to make additional tweaks in the EQ setting to really enhance these to a whole new level. I bought these primarily for music, but the noise cancellation is very good and I have had no issues with quality of phone calls. They stay in my ears and are comfortable to wear for 2+ hours. Warning: with all the adjustments these things can get very loud without any distortion to the deep bass. Don’t injure your ears, be careful!!

The sound quality is just outstanding and super clear.

This is probably my tenth set of wireless BT earbuds.  Why, because they keep getting better, and I've always appreciated the Denon sound quality (I have their receivers and wireless speaker).  Denon claims 24h battery life 8h+16h from charging case). I fully charged, and updated my firmware before trying them out.  I had no problem pairing them with my iPhone 15 pro.  I then ran them through Tara Labs Noise burn in overnight (they lasted ~7h 45m), just short of the 8h quoted, and then I recharged them.  I installed the Denon Headphone App. The earbuds were immediately recognized, and my battery level showed 100% on each earbud. The software provides an equalizer (only 5 bands, 400, 1K, 2.2K, 5K & 10K that you can adjust +/-6db; not overwhelming, but adequate), you can save your own curve with your profile. They allow setting up to 3 profiles, the real customization comes from the Adaptive Acoustic Technology, which plays a series of tones/music and then detects how well you hear each frequency, it only takes a minute or so (in a very quiet environment) for these tests to be done. They graphicly show you where they are testing and re-testing. They then show you what areas they believe need emphasis.  I was not surprised to see I need a little mid to low end boost, but that my high end hearing was good. You can then compare your personalised curve on/off. Leaving little doubt how well it works! Then on to the really important part, how do they sound and fit.  I generally move to the next larger rubber earbud surround, but after testing I found the standard set worked just fine for me.  I generally prefer a soft spongy insert for longer listening, which they include in the standard size. And they fit comfortably in my ear canals', they did not feel loose, like they might come out, and the sound seal seemed very good. I had a hard time telling the difference between the foam and the silicon, but I think the form isolated the external sound better. Now to the music, Pink Floyd's masterpiece; DSOTM.  Speak to Me sounded great, the volume level was wonderful, opening up the subtle sounds of the song. I had the  earbuds at 80% volume and that was fine (for now), but knowing they could be drive higher, I did play with the immersion mode at +2/+3, this boosts the low/mid bass, mostly (+2 is nice; +5 provides too much emphasis; your mileage may very). The subtle tones were absolutely superb as the song builds; it had the oomph you could feel, that higher volume brought.  The high notes (treble) in Time were excellent, these earbuds provide a sharp/crisp clear airy high end.  Then Great Gig In the Sky's ethereal voices, wisp around the soundstage (enhanced by the included Spatial Audio) with the bass building as it should have.  Money got me drumming, it sounded so real, the tom-toms had a real kick to them, and it was even better a little louder.  Us and Them was tremendous, it kept me turning my head, like I could tell the different instruments were right in front and around me.  As we ended with Eclipse I felt like the little voices in my head would persist, and there would be more. Then I quickly listened to Kansas Live, with Carry on my Wayward son; the vocals all came from different locations, and I could literally visualise the guitars moving in front of me.  Again the sound stage with live music is much better than I expected from ear buds.  I then moved to Boston's first album; More than a feeling was very crisp, and the bass had real presence with very nice highs.  On Foreplay/Long time the fade in/out fade had great separation it was nearly surreal.  The subtle build up was just as I expected, possibly better.  The bass was nice and deep, a little boomy (I turned the immersion mode down to 2, and it was more to my liking). Here I tried turning the personalization on/off to see how well it worked.  Quite impressive, like having a 2D or 3D soundstage.  The immersion  mode can be overdone, but it's easy to adjust. I tapped the earbuds to advance the song, it worked as I expected.  The touch controls can be programmed as you desire (a nice feature) 1,2,3 taps and double tap and hold, so 4 different options on each earbud.  The software can also control ANC (Adaptive Noise Cancellation), On and Off. Outside I could barely hear my A/C running with it on, and it was noticeable with it off.  A big difference, I imagine they will work great on an airplane.  But I don't think it is as good as a couple other name brands in doing the cancellation.  And I do really like their social mode that lets you hear the external sounds clearly, and mostly mute the music in the earbuds. I'm accustomed to the software including custom sound profile but the Denon customization/personalization does a truly excellent job. The immersion mode is another bonus, the EQ could have more bands and the ANC does a really nice job.  The earbuds are plenty loud with great battery life.  The battery case is a reasonable size with a USB-C connector. All told these tremendous earbuds, they are as close to the best that I've heard (at nearly the same price).  After listening for several hours, I found them very comfortable, I appreciate that they ship with foam and silicone tips so you can get just the right fit.  I just spent a 7 hour day with them in.  I rarely thought about their weight (other than how good they sounded), so I decided to program the social mode into the tap twice "space", as it really comes in handy (when you have to interact with real people).  And I think they look good (better than looking like you have marshmallows or cotton in your ear).  Having an iPhone, I could NOT try AptX lossless delivery (only available to Android users (not Apple), I've used it before and I'm sure it's another plus to these earbuds. Denon is new to earbuds and they have built themselves a real winner.  They are why I keep looking, but I doubt I will stop further research, certainly from trying what their follow on product is.