Also repels mice, roaches, ants, and 20+ pests.
- Rotating frequencies bed bugs can't adapt to
- Banish bed bugs in 14 days
- Chemical-free, safe for pets and kids
- Plug in and forget, no maintenance
- 4 to 5 years of continuous protection
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Note: Each Petzly device covers up to 300 sq ft, roughly the size of a standard bedroom, kitchen, or living room. Because ultrasonic waves have a protection radius limit, placing one unit in each room gives you complete whole-home protection. Most customers start with three.
P.S. Beware of cheap replicas on Amazon. Only official Petzly uses variable multi-frequency technology. Imitations will not solve your problem.
- Petzly operates on proprietary dual-wave variable frequency technology, continuously cycling through the 25–65 kHz ultrasonic range. This is the precise band shown in independent research to cause sustained neurological discomfort in rodents and insects, with no audible sound or detectable sensation for humans.
- Because the frequency pattern never repeats on a fixed loop, pest nervous systems cannot acclimate to the signal the way they do with cheap single-tone devices. This makes the disruptive effect permanent for as long as the unit remains plugged in.
- Each unit provides effective coverage of up to 300 sq ft, equivalent to a standard bedroom, kitchen, or living area. Since ultrasonic waves do not penetrate solid walls, one unit per room is recommended for complete whole-home protection.
- Completely silent and odorless in operation, producing zero audible hum, clicking, or vibration that would be perceptible to adults, children, or household pets including dogs and cats.
- Not recommended for use in rooms occupied by small caged animals such as hamsters, guinea pigs, or rabbits, or by pet birds, as these species fall within the sensitive frequency range.
- Power consumption is comparable to a standard night light, typically under 5 watts, meaning continuous 24/7 operation adds negligible cost to your electricity bill.
- Requires no setup beyond plugging into a standard wall outlet. No batteries, no refills, no maintenance schedules, and no on/off switch. The device begins working immediately and operates continuously.
- Contains zero chemicals, poisons, or residues of any kind. Safe to use in kitchens, nurseries, and pet areas without any need to vacate the room or warn family members.
- Priority shipping on all orders, delivered in 2–8 business days, completely free of charge with no minimum order value required
- Try Petzly in your home for a full 90 days, completely risk free. If you are not satisfied for any reason within that window, you are entitled to a full refund with no conditions attached
- No questions asked and no explanation required. We mean that literally. You do not need to justify your return or speak to anyone before receiving your refund
- The guarantee applies to every unit included in your order, not just the first one. Multi-pack purchases are fully covered
- To initiate a return, simply email us at support@petzly.co and our team will acknowledge your request and process your refund within 24 hours
- This warranty is separate from the 90 day money back guarantee. The guarantee covers any reason within the first 90 days. The warranty covers manufacturing defects for a full 2 years from your purchase date
- Coverage includes defects in materials and workmanship under normal household use. If a manufacturing defect causes your unit to stop working within that window, we repair or replace it at no charge
- The warranty does not cover damage from misuse, unauthorized modification, liquid damage, or normal wear and tear
- To make a warranty claim, email support@petzly.co with your proof of purchase and a description of the issue. Our team will confirm the next steps
Free Gifts That Come With Your Order
The Petzly Complete Home Setup Guide (Free eBook)
A $29 digital guide to keeping your home pest-free — yours free with every order.
Made for US Power Outlets
Every Petzly unit ships plug-and-play ready for standard US outlets — no adapter needed.
Free Priority Shipping
Free on every order, no minimum. Delivered in 4–8 business days.
90-Day Money Back Guarantee
Try it risk-free for 90 days. Full refund if you're not satisfied — no questions asked.
Petzly™ 2026 First-Gen Outdoor Repeller
Real people. Real homes.
Real results.
Over 7,000 families have taken their homes back. Here's what they told us — in their own words.
Customers Love Our Device
The reason you still have bed bugs
isn't because you haven't tried hard enough.
Every spray, treatment, and exterminator visit was working against a fundamental flaw, not against you. Here's what's actually been happening, and why Petzly is different.
Cheap devices play one fixed tone
Bed bug nervous systems tune out a single frequency within days. The same way you stop noticing a hum in a room. The device keeps flashing. The bed bugs stop caring. You've seen this happen already.
Rotating waves that paralyze them
Petzly rotates through frequencies from 40,000 to 45,000 Hz every 4 seconds. Bed bugs cannot adapt to a moving signal. The rotating waves overload their nervous system. Paralyzed bed bugs can't feed, can't mate, and can't multiply.
Breaks the eggs, not just the adults
65% of any bed bug infestation is eggs and larvae hiding in the walls, not the adults you can see. Their protein coating is why no spray can kill them, so new nymphs hatch every 7 to 14 days and the cycle restarts. Petzly breaks that coating and disrupts the nymph developmental cycle, so the next generation never reaches biting age.
Six things every Petzly customer
told us they really wanted.
Thousands of homeowners. Same six words: "I just want my home back."
To stop lying awake at 2am
Pulling back the sheet at 2am with a phone flashlight. Checking the mattress seam again. Knowing you'll wake up with fresh bites tomorrow.
A solution with no hidden danger
No toxic residue on the floors your children crawl on. No chemical smell. Nothing you have to warn your family about.
To have people over without fear
To stop turning down sleepovers and houseguests. To stop worrying that someone will spot a bite, or a seam, and know.
To stop paying for a problem that comes back
To never book another exterminator who fixes it for six weeks and then sends another invoice for another visit.
Something you plug in once and forget
No traps to check. No dead bodies to find. No reorder reminders. No appointments. No ongoing anything.
To sleep in your own bed again
A bedroom that feels like yours. Where you don't inspect the sheets before lying down. Where you finally close your eyes without checking.
"You've tried everything. You're not imagining it. And you're not the problem. The solutions were."
Why the other solutions
kept letting you down
Not because you used them wrong. Because they were built with a flaw they never told you about.
| What matters to you | Petzly | Chemical sprays | Exterminator | Cheap ultrasonic |
|---|---|---|---|---|
| Safe for children & pets | ✗ | ✗ | ||
| Paralyzes bed bugs without chemicals | ✗ | ✗ | ✗ | |
| Reaches eggs & nymphs in wall voids | ✗ | ✗ | ✗ | |
| Rotating frequency, no habituation | N/A | N/A | ✗ | |
| No need to vacate your home | ✗ | ✗ | ||
| No mess, no dead bodies | ✗ | ✗ | ||
| No recurring cost | ✗ | ✗ | ||
| 90-day money-back guarantee | ✗ | ✗ | ✗ |
32,000+ homes, plugged in and sleeping again
Real customers with their Petzly, in real bedrooms across the country.
Independent Clinician Evaluations
Clinicians receive product samples and are never compensated to submit evaluations.
"The most clinically credible non-chemical approach I have recommended to patients with bed bug-related health concerns."
What distinguishes Petzly from the generic ultrasonic devices I have assessed previously is the mechanism itself. Fixed-frequency devices fail because bed bug nervous systems acclimate to a monotone signal within days, rendering the device functionally inert. Petzly's rotating multi-frequency output at 40,000 to 45,000 Hz, cycling every 4 seconds, prevents that acclimation entirely. The rotating signal continuously disrupts the bed bug's nervous system. Both feeding and reproductive behavior are impaired at the same time. Paralyzed bed bugs cannot feed, cannot mate, and cannot multiply.
I have recommended it to twelve patients over the past four months as a primary or adjunctive measure. In ten of those cases, patients reported a meaningful reduction in bed bug activity within two weeks, with no chemical exposure to the household. I would note the appropriate caveat that small caged rodents and birds should not be housed in rooms where the device is operating. Within those parameters, I am satisfied it represents a clinically sound option for households where chemical treatment is contraindicated or refused.
"The rotating frequency mechanism is the first meaningful departure from single-tone devices I have seen in this category, and the patient outcomes reflect that."
The mechanism behind this cycle is well-established in the literature. Bed bug eggs are chemically inert, so sprays cannot penetrate the protein coating. Nymphs that hatch after treatment re-establish the colony within one egg cycle. No spray-based intervention I am aware of addresses this structurally. It is a category limitation, not a product failure.
Petzly's rotating multi-frequency output at 40,000 to 45,000 Hz addresses both problems at once. First, the frequency rotation prevents the habituation response that renders single-frequency devices inert after 72 hours. Second, and more importantly for my research population, the continuous signal disrupts the nymph developmental cycle. The next generation never reaches biting maturity. That structural feature is what separates it from every other intervention I have assessed.
I introduced Petzly to eight households in my research cohort over a four-month period, all of whom had experienced at least two failed professional treatments. Six of the eight reported significant reduction in observed bed bug activity within fourteen days. The remaining two reported improvement by week four. I have no financial relationship with the manufacturer. For households in high-infestation urban environments where chemical re-treatment is not a viable long-term solution, Petzly represents a clinically credible primary or adjunctive measure.
You've been let down before.
We know.
That's exactly why we back every Petzly with a full 90-day money-back guarantee. No complicated process. No being passed around. No small print. If you don't see results within 90 days, you don't pay. The risk is entirely ours, because we're confident you won't need it. But it's there, no questions asked, just in case.
You're probably wondering...
The honest answers, including the ones other brands gloss over.
You're right to be skeptical. Here's the honest answer. The studies that say these devices do not work were testing single-frequency units. One fixed tone, running constantly. Pests stop reacting to a constant signal within days, the same way you stop hearing a fridge hum. That is why so many people say theirs worked for a week and then nothing.
Petzly rotates continuously through the 40 to 45 kHz range, two frequency limits, rather than holding one tone. There is no steady signal to adapt to and it paralyses a pest's nervous system, as well as actually going deep into the walls to eliminate eggs. That is the entire difference between us and a $15 plug-in.
It also makes a room somewhere pests will not settle, and that takes weeks rather than days.
So far, this device is used against 20+ different pests, mainly bed bugs, rodents, roaches, mites, fleas, spiders, mosquitos, etc.
Yes. Petzly is designed for 20+ pests — bed bugs, rodents, roaches, mites, fleas, spiders, mosquitos, and more. Any of those is a category the unit is built for.
What we won't do is promise a specific timeline, because how fast it works depends on how established the problem is and how much of the home you cover. Larger infestations take longer. That's why the 90-day guarantee matters — you find out in your own house at no risk.
Fair question, and the honest answer is that most of them are the same thing as each other. A six-pack for $25 works out to about $4 a unit, and at that price it's a single fixed-tone emitter — the exact design the research found stops working after the first few days. You're not buying six devices, you're buying the same failure six times. Petzly rotates continuously through the 40 to 45 kHz range instead of holding one tone, which is why it doesn't habituate.
Three other differences worth naming. We recommend one unit per room and say so plainly, rather than claiming one unit covers 2,000 sq ft. We give you 90 days rather than 30. And you're buying from a company that will still be here in a month if something goes wrong.
Tracy W.
Chicago, IL · 02/05/2026
I never write reviews. But after three months of sleepless nights, within a week I noticed fewer bites. After two weeks — not a single one. It's been three months and they haven't returned.
Edith M.
Philadelphia, PA · 18/04/2026
One exterminator tried to charge me $1,700. My grandson plugged these in. I slept through the night for the first time in months.
David K.
Atlanta, GA · 24/04/2026
Just ordered 3 — one for the master bedroom, one for the guest room, one for the kids' room. I was spending $1,500 a quarter on exterminators. This is a no-brainer.
Maria T.
Houston, TX · 11/04/2026
As a nurse and single mom I needed something safe for my kids and dog. The silent operation means we don't even notice they're working. I finally cook dinner without worrying.
Patricia H.
Denver, CO · 29/04/2026
My pest control professional wasn't thrilled when I told her I stopped the quarterly visits. Three months later a pest inspection found zero evidence of active bed bug presence. 😂
Samantha K.
Atlanta, GA · 06/04/2026
All mice and rats gone in a week. So silent I keep checking to see if they're still plugged in. Not lying awake at 2am listening to the walls anymore.
Rachel M.
New York, NY · 14/04/2026
I had no idea the eggs were the actual problem until I read up on it. I'd been spraying for months. First clean inspection report I've had in two years. I cried.
Julia G.
Phoenix, AZ · 03/05/2026
After battling mice for months with cheap store traps, I finally ordered Petzly. Should have done it sooner. Haven't seen a single rodent in five months.
Debra H.
Boston, MA · 09/04/2026
I live in an old house in the Northeast — bed bug capital. I use Petzly year-round and still do a professional inspection once a year. The bites stopped within two weeks of plugging it in.
Amanda R.
Baltimore, MD · 27/03/2026
I was quoted $2,000 to treat the whole house. Petzly was a fraction of that — and it actually works. Started seeing fewer bed bugs after 3–5 days. Just ordered six more for my mom.
Tracy G.
Miami, FL · 30/04/2026
Bought this after finding bites on my daughter every morning for two months. No chemicals, no toxic residue. Peace of mind alone is worth it.
Donna W.
Austin, TX · 22/04/2026
One unit per room is what they recommend. I got three — bedroom, living room, and guest room. Total protection. I sleep through the night now.
Jessica T.
Portland, OR · 16/04/2026
My exterminator looked it up on his phone when I told him my results. Priceless.