The Husvel Wind-Down Protocol
One steady tone in the room — the cue your evening has been missing.
What is it, exactly?
A dedicated speaker that plays one steady tone at a frequency you choose, anywhere from 0.01 to 100,000 Hz. That's the whole device. No screen, no wifi, no app, no microphone.
How is it different from a sleep app?
An app needs the phone, and the phone is usually the reason you're still awake. Husvel sits across the room doing one job, and nothing on it can notify you.
Which frequency should I start with?
432 Hz. It's the alternative concert pitch — slightly lower and rounder than standard tuning, and the one most people find easiest to stop noticing. Move around during week one and keep whichever disappears fastest.
How long do I run it for?
Twenty to thirty minutes as you get into bed. Plenty of people leave it on all night at low volume — that's fine too. There's no dose to get right.
Will it wake my partner?
At normal volume it sits under the level of a desk fan. And if they're a light sleeper, that's what the included headphones are for.
Is the handbook a PDF?
No — a printed book in the box. It's the difference between owning something and downloading something, and it's why people actually use the device on night one.
Is it safe around children and pets?
It's a speaker playing a tone. Keep it out of reach of small children like any other electrical device.
What if it does nothing for me?
Send it back within 60 nights for a full refund. Some people notice a difference in the first week and some never do — the guarantee exists so you aren't carrying that risk.
Hear the range, right now
Eight of the most-used settings, in the range your phone can actually play. Drag, type a number, or tap one — the screen follows.
Every Component Carefully Chosen
Four decisions that separate this from a $12 tone generator. Every one is checkable.
Most sleep aids mask the problem.
Husvel changes the cue.
Lying awake isn't random. It runs the same loop most nights — and almost every product aimed at it joins the loop instead of breaking it.
Nothing has told your body the day is over. The lights changed; the state didn't.
With no input left, it goes to the archive — a conversation from four years ago, tomorrow's list, a decision you already made.
Now there's a number attached. Five hours and forty minutes left, if you fall asleep immediately — which you now definitely won't.
Sleep app, white noise, a breathing exercise. All of them require the single object most responsible for keeping you awake to be in your hand.
Tired, so you go to bed earlier with more pressure on it working. Pressure is the one ingredient guaranteed to make it worse.
Effort at midnight is the problem, not the solution. What a wind-down routine actually needs is a cue — the same signal, same room, same hour, until your body recognises it before you do.
Husvel works differently — because it changes the signal, not the effort
Three steps. One protocol. Designed for the whole loop, not just the part you notice.
Turn the dial anywhere from 0.01 Hz to 100,000 Hz. Eight shortcuts on the front panel, the rest in the printed handbook. Most people find theirs on the first or second night.
Put it down and walk away — bedside table, desk, a shelf across the room. It has its own speaker, so the phone can stay in the hallway where it belongs.
Same tone, same hour. The effect is cumulative, not immediate. By the end of week one, switching it on starts to feel like the end of the day rather than a thing you're trying.
Filmed in one take, no cuts
You can't feel a tone through a screen. This is the closest thing — the device, running, unedited.
Hear it from them
How we stack up against what you've already tried
Most of these are ongoing costs. Husvel is one payment, and you can send it back.
If it doesn't work you pay nothing — 60-night money-back guarantee, no return shipping charge.
You shouldn't have to risk another night
on something that might not work.
You've already spent enough on this. This time the risk is entirely ours.
Use it every night for two months. If your evenings haven't changed, email us and send it back — we refund every penny and you don't need to explain yourself.
- ✓Full refund — not store credit
- ✓No return shipping charge
- ✓No questions, no forms, no waiting
- ✓Refunds processed within 48 hours
100+ frequencies. One dial.
Described by how they sound and when people reach for them. Tap any card in the audible range to load it into the dial — the rest are device-only, below or above what a phone speaker can play.
Built to sit on a bedside table for years
60-night trial · free shipping · ships in 24 hours
Everything you need to know before you try it
If something is stopping you from trying Husvel, the answer is probably here.
Is the tone on this page the real device?
No — the dial above is a simulation running in your browser, played through whatever speaker your phone or laptop has. It shows the pitch and the range, nothing more. The unit has its own driver and sounds fuller than a phone can manage, which is most of the point of buying an object instead of using an app.
What does 0.01 to 100,000 Hz actually mean?
Seven decades of range. You can only hear roughly 20 Hz to 18,000 Hz, and the upper limit drops with age. Below 20 Hz nothing is audible — those settings run silently. The dial on this page is logarithmic for the same reason, or everything usable would sit in the last inch.
Do I need headphones?
No. It has its own speaker and is meant to be heard in the room, not in your ears. The included headphones are for shared beds, planes and open-plan offices.
Does it need wifi, an app or an account?
None of the three. Plug it in, turn the dial, done. There is no microphone and it doesn't connect to anything.
Can I leave it running all night?
Yes. Plenty of people do, at low volume. There's no session limit and no timer you have to reset.
How quickly will I notice anything?
Night one you'll notice the tone more than anything else — that's normal. By nights two to four it stops being interesting and starts being useful. The effect is about repetition, so give it a week before judging.
Is this a medical device?
No, and we don't claim it is. It's a consumer sound device for relaxation, focus and general wellbeing. If you have persistent difficulty sleeping, please speak to a doctor — this is not a substitute for that.
What's the difference between the three options?
Essentials is one device with everything needed to use it. The Complete Kit adds a room speaker, a travel case and a braided cable. The Two-Room Kit is two full devices — most people who buy one want a second within a month, for the desk.
How does the guarantee work?
Email us within 60 nights, send it back, and we refund the full amount within 48 hours. No return shipping charge, no forms, no explanation required.
Where do you ship, and how fast?
Orders placed before the cut-off ship within 24 hours. Shipping is free on every option. Tracking arrives by email as soon as the label is created.
Customer Reviews
Really loving these products! The frequency generator is super easy to use and set up no hassle at all. The speaker itself is really cool too, though I will say the rechargeable battery doesn't hold its charge very long, even when it's fully charged
Oh my goodness, I love this machine it actually works! I skipped using it for a week and my legs swelled up so much. I used the lymphatic opening frequency and it made a real difference — my legs are back down, nowhere near the size they'd swollen to. I'll definitely keep using it with different frequencies from now on. No more skipping sessions with my frequency generator!
Incredible device it's been a total game changer for me. Honestly one of my favorite gifts to give people
Give your attention somewhere to rest
Sixty nights to change your mind, and your phone stays in the hallway.
Add to cartFrom hús, the old Norse word for house. One steady tone, in one quiet room.
Husvel is a consumer sound device intended for relaxation, focus and general wellbeing. It is not a medical device. It is not intended to diagnose, treat, cure or prevent any disease or medical condition, and it is not a substitute for medical advice. If you have persistent difficulty sleeping, please speak to a doctor. Individual experience varies.