Sentinel Pro X — ANC Wireless Headphones

Built to disappear

The Sentinel Pro X was engineered around a single principle: nothing should sit between you and the music. Not the headphones, not the wireless connection, not even the noise of the room. Just the recording, exactly as it was meant to be heard.

A pair of custom-tuned 40mm beryllium drivers delivers a wide, accurate soundstage — from the lowest sub-bass to the highest cymbal shimmer — with the kind of separation usually reserved for studio reference monitors. Adaptive noise cancellation samples your environment 50,000 times per second and adjusts in real time, so the cabin of a plane sounds the same as your living room.

After eight hours of wear, you forget they’re there. That’s the whole idea.

Key features

• 40mm beryllium drivers — studio-grade response from 4 Hz to 40 kHz, tuned for accuracy not flattery
• Adaptive ANC — environment-aware noise cancellation with seamless transparency mode
• 50-hour battery life — with ANC active, or 70 hours without; 10-minute fast charge gives you 8 hours back
• Bluetooth 5.3 multipoint — connect to two devices at once, switch mid-call without missing a word
• aptX Lossless & LDAC — true CD-quality wireless when your source supports it
• 2-year warranty — covered against manufacturing defects, fully repairable

Materials & build

The frame is machined from a single piece of aerospace-grade aluminium, finished in a soft-touch matte coating that resists fingerprints and stays cool to the touch. The ear cups are wrapped in protein leather over slow-rebound memory foam, and the headband is suspended on a self-adjusting cradle that distributes weight evenly across the head. The entire frame weighs just 310 grams. Every joint is replaceable, every cable is user-serviceable, and every part is documented in our open repair guide.

What’s in the box

Sentinel Pro X headphones, hard-shell carrying case, USB-C charging cable, 3.5mm audio cable for wired listening, airline adapter, and a quick-start guide. Ships with free standard delivery on orders over $50, and a 30-day no-questions return window. Two-year warranty registered automatically — no forms, no fine print.