Isper is a hardware project: a wired earphone that turns your quietest voice into text — on the device, nowhere else.

hold the button and speak

1. — Shell A sealed in-ear unit, tuned for high-fidelity listening. It isolates what you hear — and what it hears.

2. — String The cable carries a microphone an inch from your mouth. Close enough to catch a whisper. Wired, so nothing is compressed and nothing is delayed.

3. — Port At the end of the wire: hi-fi audio out, and a neural engine that turns your voice into keystrokes. To your computer, it's a keyboard. Nothing to install, nothing to grant, nothing leaves the device.