Feel
Real clicks, not buzzes
Every click is a real one under your thumb, not a vibration faking it. Choose how many there are and where they sit along the slide.
An EDC fidget slider
you can tune & play.
Describe the feel. Pi makes it real.
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Try the sounds
Feel it. Tune it. Hear it.
What we're building toward. The working prototype is in progress.
Digital
Fully digital, totally yours
Save your favorite setups and switch between them. Share a feel with a friend (coming soon).
Sound
Every click has a voice
Seven clicks, seven notes, each with a tap of vibration to match. Piano, guitar, or just the pure click. Slide out a melody.
Same push, three feels
Detents off, light, then heavier sections. App concept animation; hardware in development.
Watch on YouTube ↗Films
Meet Adam.
Watch Pi play.
Meet Adam
An animated introduction from the maker.
Watch on YouTube ↗Life of Pi
An animated short: 47 tries at stage 7, then three notes.
Watch on YouTube ↗Choose a format. Tap to play with sound.
Try it here
Slide it.
Play a tune.
Drag the top plate or tap a position below. Each click will trigger a sound. This browser demo lets you try the sounds.
Real physical detents. Set their presence, strength and feel in the app.
Loaded from Pi:
Hold
Play
Sound
Effects
Free play only
A screen can't pass on haptics, so you won't feel the real clicks here. This demo only lets you play with the sounds.
Want to follow the hardware build?
Get development updates and launch news by email.
AI
Meet Pi.
The AI in the echoPi app. Tell it how you want it to feel or sound, and it sets up your clicks.
Describe the feel…
Just three clicks. I need room to think.
Pi
Say less. Three clicks with big quiet stretches in between. Slide, breathe, click.
set clicks sound piano
Something like rain on a tin roof.
Pi
Every other click is a raindrop now. Close your eyes and it's basically weather.
set clicks sound rain
Can it play something classy?
Pi
How about Bach? Each click is the next note of the Prelude in C. You slide, I'll handle the counterpoint.
set clicks sound piano play Bach · Prelude in C
Help me wind down before bed.
Pi
Lights low. Three soft guitar notes in the middle, nothing at the edges. No rush, no rhythm, just drift.
set clicks sound guitar
I fidget a lot on calls. Make it satisfying.
Pi
Then the ends are your reward: little beads in the middle and a soft gong every time you hit a wall. Go on, bounce.
set clicks sound just the click
Example chats. echoPi and Pi are in development.
Specs
Made to live in your pocket.
A black body and a single light, built to be picked up a hundred times a day.
- Feel7 real clicks you can tune
- MemoryRemembers your setup, even on a flat battery*
- SoundBuilt-in speaker and haptics
- AIPi in the echoPi app, over Bluetooth
*echoPi is in development. Specs are design targets and may change before launch.
Fidget slider guides.
What is a programmable fidget slider?Fixed detents vs clicks you can place, and what that changes.Fidget sliders with soundSnaps, ticks, chimes and notes: where each sound comes from.Magnetic vs mechanical slidersFeel, noise, wear and price, side by side.What "haptic" means on a sliderHow to judge clicks, rebound, noise and travel.Best fidget sliders for adultsNine current picks, grouped by what you want.How to choose an EDC sliderA seven-point checklist before you buy.
All 63 guides →
FAQ
Questions, answered.
What is echoPi?
echoPi is an EDC fidget slider with real clicks you can tune. You choose how many clicks there are and where they sit along the slide, and each click can play a note. It's currently in development.
How is it different from other fidget sliders?
Most fidget sliders have fixed detents, so the feel you buy is the feel you get forever. On echoPi the clicks are programmable: switch between saved setups, or make your own.
Are the clicks real or just vibration?
Real. The clicks you feel are physical stops under your thumb, not a vibration motor imitating them. A small tap of vibration is added on top of the sound. (Design target while in development.)
Do I need a phone to use it?
No. echoPi works on its own. The echoPi app, with Pi, our AI, is where you create and save new setups; sharing with friends is coming soon.
What does Pi, the AI, do?
Describe a feel in your own words, like "three clicks, room to think" or "rain on a tin roof," and Pi suggests a setup of clicks and sounds you can try right away.
When can I get one, and how much will it cost?
echoPi is in development and pricing isn't set yet. Join the launch list for development updates, and we'll email you when pre-orders open.
Who is echoPi for?
People who carry EDC gear and like something satisfying in their hand, ages 14 and up.
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