Cvtayn 2025 Upgraded Ultrasonic Pest Repellent Indoor Insect Repeller, Pest Control, Repellent Roach, Mouse, Bugs, Mosquito, Mice, Spider, Ant, Rodent Repellent Ultrasonic Plug in, 3 Mode Switching, 6 Packs

Why I tried it

My house sits near a creek and a line of old trees, which makes it a magnet for ants in spring, small roaches in summer, and the occasional mouse scouting the garage. I prefer to avoid sprays or poison baits indoors, so I gave the Cvtayn ultrasonic repeller a full run: all six units installed at once, different modes per room, and two weeks of continuous operation before making any judgments.

Setup and build

Each unit is a compact, plug-in puck with a simple mode button and status light. There are no batteries—just plug in and go. Power draw is rated at 3–5 W, which is roughly night-light territory. The six-pack matters because ultrasonic waves don’t travel through walls or furniture well. If you expect one unit to cover a whole floor, you’ll be disappointed. I treated each repeller as “per-room” coverage.

Cvtayn claims up to 1,600 sq ft per unit. In practice, think of that as open-plan, line-of-sight space. The devices worked best when I followed two placement rules: install them vertically, 10–50 inches off the floor, and keep them away from soft furnishings that absorb sound (curtains, couches, hanging blankets). Hallways connecting open rooms fared fine with one unit; closed rooms each needed their own.

Three modes, real-world performance

The marquee feature is the three selectable ultrasonic bands:

• Blue: ~25–45 kHz (flying insects)
• Yellow: ~18–35 kHz (ants, roaches, spiders)
• Red: ~10–25 kHz (rodents, heavier infestations)

I started with Yellow in the kitchen, pantry, and laundry room, Blue in bedrooms (mosquitos/gnats are my nightly nuisance), and Red in the garage and basement where I’d seen mouse droppings before.

Here’s what happened over two weeks:

• Ants and small roaches: I saw a noticeable decline within 7–10 days. Trails thinned out in the pantry, and the odd “scout” roach in the kitchen stopped appearing. I did combine this with better food storage and wiping down counters at night; ultrasound isn’t a substitute for sanitation, but it helped.
• Spiders: Fewer webs in basement corners by week two. Spiders are stubborn and love undisturbed areas, so I wasn’t expecting a total exodus, but activity clearly dropped.
• Mosquitoes/gnats: With Blue mode in bedrooms, I got fewer nighttime buzzes and bites. I also run window screens and keep indoor plants pruned; the repellers felt like a supportive measure rather than a cure-all.
• Mice: Mixed results. In the pantry, Red mode appeared to stop the telltale rustling I’d hear at night; I found no new droppings there. In the garage, I still found fresh droppings after the first week. I added snap traps along the wall paths (with bait inside secured boxes for safety) and sealed a gap near the weatherstrip. That combination finally cleared garage activity. The repellers likely made the space less comfortable, but mechanical control and exclusion still did the heavy lifting.

A quick note on expectations: During the first 48 hours, I saw a brief uptick in crawling insects—likely as nests got disturbed. That settled as days went on. Also, I rotated modes once per week in the garage (Red to Yellow to Red) to vary the stimulus; whether that helped or just felt proactive is hard to say, but the overall trend was positive indoors.

Coverage, placement, and practical tips

Ultrasound behaves more like light than scent: it reflects, it’s blocked by solid surfaces, and it falls off quickly with distance. A few placement pointers based on my tests:

• Keep units facing open space, not into furniture or thick curtains.
• Target wall voids by placing units along baseboards and near outlets adjacent to known entry points.
• For crawling insects, the 10–50 inch height guideline is sensible; for flyers, a bit higher placement worked fine too.
• Don’t expect a unit in a hallway to protect a closed bedroom; put one in each room you care about.
• Give it 2–3 weeks before judging results, particularly for established insect populations.

Noise, pets, and safety

For the most part, the units were silent to me. On Blue and Yellow, I heard nothing in a quiet room. Red was interesting: I couldn’t hear a tone, but after an hour in a silent basement I felt a slight “pressure” sensation in my ears, similar to sitting near an old CRT monitor. It wasn’t painful, just noticeable. People with tinnitus or sensitivity to high frequencies may want to stick to Yellow where possible or place Red-mode units in less-occupied spaces.

The manufacturer calls the devices safe for pets, and I agree for dogs and cats in my household—no visible agitation. If you keep pet rodents (hamsters, gerbils, guinea pigs) or exotic small mammals, be cautious; rodents hear into ultrasonic ranges and could be stressed. I’d avoid using these in rooms where such pets live.

Energy use and maintenance

Each unit sips power and runs cool. There’s no filter to change, no refills, no pairing with an app. The maintenance is behavioral: keep them plugged in, keep rooms clean, and check for new entry points or standing water that would undermine your efforts. I used sticky monitors under the sink and behind the fridge to measure insect trends—useful, inexpensive feedback.

Marketing claims vs. reality

Ultrasonic repellers always promise a lot. Cvtayn’s list includes everything from ants and roaches to squirrels, birds, snakes, and bats. Indoors, I’d treat the device as a tool for common household insects and possibly to nudge mice away from a food source. I wouldn’t expect it to solve a serious rodent infestation on its own, and I certainly wouldn’t rely on ultrasound for wildlife control. For termites, bed bugs, and carpenter ants inside structural wood, you’ll need professional treatment.

The 1,600 sq ft coverage number is optimistic in typical homes with framed walls and furnished rooms. The six-pack is the right way to deploy this technology: one per room you care about, plus the garage and basement.

What I liked

• Simple, low-effort setup; plug-and-forget convenience
• Clear mode structure that maps to common pests
• Real reductions in ants, small roaches, and spiders over two weeks
• Mosquito annoyance reduced in bedrooms
• Low power draw, no consumables, no odors or residues
• Six units make whole-home deployment feasible

What needs work

• Mixed impact on mice; still needed traps and exclusion to finish the job
• Red mode may feel fatiguing for sensitive ears in quiet spaces
• Coverage claims are optimistic; treat as per-room devices
• Marketing overreach (wildlife and wood-boring pests) sets unrealistic expectations

Who it’s for

If you’re dealing with recurring ant trails, small roaches, spiders, or seasonal gnats and mosquitos—and you’d rather avoid chemical sprays—this is a sensible, low-maintenance tool to fold into your routine. If you suspect a more serious rodent problem, consider it a supporting actor alongside sealing entry points, removing food sources, and using mechanical traps. Renters who can’t modify their space will especially appreciate the plug-in simplicity.

Recommendation

I recommend the Cvtayn ultrasonic repeller as a supplemental, non-chemical layer for everyday household pests, especially ants, small roaches, spiders, and flying insects. In my testing it reduced insect activity meaningfully within two weeks and helped discourage mice from food areas, though it did not replace the need for traps and exclusion where rodents were established. Use one unit per room, follow sensible placement, and set realistic expectations. If you want a low-effort, energy-efficient way to tip the balance in your favor without chemicals, this six-pack is a practical choice. If you’re facing a heavy rodent infestation or structural pests, skip ultrasound as a primary solution and call a pro.