
40 mm custom bio-cellulose drivers.
Sub-bass you feel at 20 Hz, without colouring anything above it.
Wireless headphones with adaptive silence, 40 hours of battery and a 285 g body you stop noticing the moment the music starts.
Every surface, seam and switch was reduced until only the necessary remained. An object you forget you are wearing, so nothing stands between you and the sound.



Eight microphones read the room 48,000 times a second and remove what you didn’t ask for. Try it.
Rush hour, as it is. Traffic, voices, the train announcement you have heard a hundred times.
Six systems working as one, tuned across 400 hours of listening so you never have to think about them.

Sub-bass you feel at 20 Hz, without colouring anything above it.
Tap a point on the product. Every part was machined, stitched or tuned for one job.




The early train, the long layover, the quiet hour before everyone wakes up. The moments that belong to you.



How TESOUND ONE measures against a typical flagship pair in the same price range.
“The first headphones I’ve worn all day without thinking about them.”
“Silence you can switch on. It changed how I work on planes.”
“Detail I had only heard in a studio, on a train at rush hour.”
“It gets out of the way. That is the highest compliment I have.”

Or 4 interest-free payments of $99.75
TESOUND ONE, folding travel case, USB-C to USB-C cable, USB-C to 3.5 mm audio cable, quick start card.
Weight 285 g · 40 mm bio-cellulose drivers · Adaptive ANC with 8 microphones · Bluetooth 5.4, LE Audio, aptX Lossless · Up to 40 h battery · USB-C fast charge.
Free tracked shipping worldwide. Return within 60 nights for a full refund, and we send the label.
Orders ship within 24 hours from our Copenhagen warehouse and arrive in 2–4 working days. Shipping is always free.
Listen for 60 nights. If they are not for you, send them back with the prepaid label for a full refund.
Yes. TESOUND ONE works with any Bluetooth device and stays connected to two at once, like your phone and laptop.
Yes. Use the included USB-C or 3.5 mm cable for lossless and wired listening, even when the battery is empty.
Two years against defects in materials and workmanship, extendable to five years at checkout.

Free shipping, 60 nights to decide, and a two-year warranty.