The train just goes quiet.
I commute 90 minutes each way and the noise cancelling genuinely removes the carriage roar. I get the full week in before the case needs charging. Best audio purchase I have made in years.
Cobalt Pro is tuned by acoustic engineers for studio-grade clarity, with adaptive noise cancelling that reads the room around you. Sound, engineered.
✓ Free next-day shipping • 45-day test at home • 2-year warranty
Cobalt Pro is built around the moments that make or break a pair of earbuds: the detail you hear, the noise you do not, and the charge you never think about.
10mm graphene drivers move fast and clean, so bass stays tight and vocals sit forward. You will catch detail in familiar tracks that other buds simply smear over.
Studio-tuned by acoustic engineersSix microphones sample the room 50,000 times a second and cancel it in real time. One tap for full quiet, one for transparency, no menus to dig through.
Adaptive ANC, up to 42dB reductionEight hours in the buds and thirty more in the case add up to a full week of commutes. Forgot to charge? Ten minutes returns four hours of play.
38 hours total with the casePick your pack below and watch the price update live. Every order ships free next day and is covered by our 45-day test-at-home promise.
Selling fast: only 38 charging-case bundles left at this price.
The train just goes quiet.
I commute 90 minutes each way and the noise cancelling genuinely removes the carriage roar. I get the full week in before the case needs charging. Best audio purchase I have made in years.
They stay put when I run.
I bought these for the gym and ended up wearing them everywhere. Sweat has not been an issue, the fit test in the app got my seal right first time, and the bass is properly there.
Half the price, and honestly better.
I had the flagship pair from a much bigger brand and returned them for these. The adaptive ANC handles open-plan office chatter better and the case lasts noticeably longer. No regrets.
Transparency mode is brilliant.
One tap and I can hear the platform announcements without taking them out. Calls are clear too, nobody has asked me to repeat myself once. The 45-day window meant I could buy with zero worry.
Fantastic, took a day to settle on tips.
Sound quality is excellent and the battery is no joke. I needed the small tips rather than the default mediums, but once swapped the seal and noise cancelling were perfect. Glad they include four sizes.
Next-day delivery, listening that evening.
Ordered in the afternoon and they arrived the next morning, fully charged. Setup was two minutes. The graphene drivers make my old playlists sound new, you hear detail that was just not there before.
Order today, use Cobalt Pro through every commute, run and call. If they are not the best earbuds you have owned, send them back inside 45 days for a full refund, shipping included. Keep them and you are covered by two years of warranty. The risk is entirely ours.
Guides, teardowns and honest advice on getting the most out of a great pair of earbuds.

Six microphones, 50,000 samples a second and a bit of clever maths. Here is what is really happening when you tap for quiet.

Most bass complaints are really seal complaints. Swap two tips, run the test and hear the difference in minutes.
We put both pairs on the bench and measured battery, noise reduction and drivers. The gap may surprise you.
Join 31,000+ owners who upgraded their everyday listening. Launch-week pricing and the free charging case are live now, and the 45-day promise means there is nothing to lose.