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🌙 Sleep smarter, anywhere — silence the noise, own the night.
The Adaptive Sound Technologies LectroFan EVO is a compact, USB-powered white noise machine featuring 22 non-looping ocean, fan, and white noise sounds. Designed for portability and ease of use, it includes precision volume controls, a sleep timer, and a headphone jack. Its upward-facing speakers fill rooms with consistent, soothing sound to block disruptive noises, making it ideal for light sleepers, nurseries, and travelers seeking uninterrupted rest.

















| ASIN | B074FL2HL2 |
| Age Range Description | Toddler |
| Best Sellers Rank | #9,439 in Health & Household ( See Top 100 in Health & Household ) #20 in Sleep Sound Machines |
| Brand | LectroFan |
| Brand Name | LectroFan |
| Color | White |
| Connector Type | USB |
| Customer Reviews | 4.5 out of 5 stars 9,558 Reviews |
| Global Trade Identification Number | 00897392002367 |
| Item Depth | 4.7 inches |
| Item Dimensions | 4.7 x 4.7 x 3.3 inches |
| Item Highlight | Non-Looping Sound Machine for Sleep with Soothing Noise, Convenient Sleep Timer, Lightweight Build, USB Powered |
| Item Nype Name | sleep sound machine |
| Item Weight | 12.8 ounces |
| Manufacturer | Adaptive Sound Technologies |
| Manufacturer Part Number | ASM1020-WW |
| Manufacturer Warranty Description | 2 year manufacturer |
| Material | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Material Type | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Model Name | LectroFan |
| Model Number | ASM1020-WW |
| Music Tracks | 22 Non-Looping Sounds |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Tracks | 22 |
| Power Source | AC Power Adapter |
| UPC | 897392002367 |
| Unit Count | 1 Count |
A**I
Best thing on the market.
Cant believe I hadnt written a review sooner, Mine has lasted me 7 years. This little piece of technology is extremely reliable, very easy to use, and actually does a fantastic job of covering up noise in a range of different ways. The headphone jack makes it easy to connect a pair of headphone, the loops are flawless, and has made my ability to sleep across several different households so much easier the last 7 years. I lost the original power adapted to plug it into the wall, but it takes such little power any 5v usb output works for it. Love this little guy, whenever it breaks Ill more than likely buy another just because of the flawless loops and long term reliability. If you want to flood a room with more bass, put in in a corner!
A**F
This has saved me from sleep deprivation!
I have cat-induced insomnia. My cat meows besides the bedroom door until I wake up in the middle of the night. She gets enough food before bed and again in the morning, she’s been checked by the vet, she has plenty of toys, but still, she meows for attention. She isn’t allowed to sleep inside the room for other reasons (plus she would still meow at me even if she was inside). I’m not a person who can fall back asleep easily once completely awake. I start becoming anxious and thinking about things, and next thing you know, hours have gone by! It was getting to the point where I slept less than 5 hours a night most of the time. I thought I would go insane. I tried a lot of things before this sound machine. I wore high-quality, silicone earplugs. I left the fan on. I tried to put foam on the bottom of the door to block sound. Nothing was enough to muffle my cat’s meows enough for me to sleep through them! I didn’t have high hopes for this, even though I read through a lot of the good reviews before buying it. I always thought sound machines would only be as effective as a fan. When I tried this out, I first tried the fan setting because I liked how that one sounded. Then I tried the white noise setting and that one actually worked a lot better to muffle the cat noises. I think she’s even stopped meowing most nights now because I don’t respond to it anymore. The machine gets loud and I turn it up high. I still sleep with earplugs in, or else the sound would be too loud. The combination of the machine and earplugs are enough for me to sleep through disruptive noises, even as a light sleeper! If you’re worried about your alarm, if you keep it right next to your bed you should be fine. I tested alarms on my phone to see if I could still hear them loud enough, and I could! It might be an issue if you keep your alarm further away though. I haven’t experimented much with this machine because the setting I have it on with the white noise already works so well. You can adjust the volume to your liking. The sound travels up and helps to fill the whole space you’re in, rather than just occupying a single corner. The machine is also super small which I wasn’t expecting, and that’s great because it’s light, portable and not clunky. I worried where I was going to put it until it arrived and I saw how small it is!! Overall, if you suffer from noise-induced insomnia, or if you just need some comforting background noise to help you fall asleep, you need to try this little machine! If your cat is extra loud at night, then you especially need to give this a try. I’m so glad I found this!
B**M
Let me sleep longer
I love this product! It drowns out the road noise near my house and lets me sleep longer. Great variety of sounds with different frequencies which allowed me to dial in what works best.
D**D
Great sound, easy to use, includes output jack for headphones or external speaker
This sound machine is rad because the sound output has a pretty broad range, meaning there's more bass than other noise generators I've used, which is important for masking; the buttons are easy to use without having to look; and it has a headphone output, which means one can connect an even better speaker system to it and get really full-range sound. The only reason I docked a star is the price. Sixty dollars is kind of a lot to pay for a little sound machine, in my onion.
A**D
Perfect white noise
I love this noise machine so much. I expected to use one of the fan noises since I've been using fans most of my life for background noise, but I fell in love with the first setting in the white noise category which is the lowest frequency. It masks my husband's snoring, the sound of the AC compressor turning on and off, the window rattling on windy mornings, neighborhood dogs barking, and rowdy get-togethers at the park next door. I wish I had found it sooner. I love being able to control the volume and that it remembers my selection everytime I turn it on. The power and volume buttons are easy to find in the dark, and I will be able to easily pack this to take on trips. No more buying box fans where ever I go! I cannot recommend this enough and am grateful to Wirecutter for making it their top pick. Might be pricey at a glance but so worth it.
A**T
My Wife Thought I Was Nuts..
For over a decade my wife and I have put on the sound of ocean waves on our beloved Squeezebox radio devices as white noise to fall asleep to. We had a pug that would snore pretty loud, so needed something to drown that out -- and besides that, when it's dead silent and the house is creaking or there's some other noise to fixate on, it can sometimes be hard to fall asleep. So the Squeezebox device worked well, except several times a year or more there were either power glitches or network glitches that caused the white noise to be interrupted -- which would inevitably wake us up and have one of us walking over half-asleep to reset the radio, sometimes cursing at it because it wouldn't just reset. I eventually decided that it'd be nice to have something that just did white noise and didn't require any network connection -- or would restart itself if the power went off. I now have 4x LectroFan white noise machines. Two of this model and two of their more basic model. They all work well. I have one in the guest room for when guests are over, we were using one by our puppy's crate for a number of months, there's this model in our bedroom for falling asleep to ocean waves and then a sister to that one that is only for traveling. My wife thought I was nuts for buying the first one. Probably because of the fact you can play white noise on your phone, we had the Squeezeboxes playing ocean waves, etc. But then after we used it for a while, she started to love it -- and also love the simplicity of them. You just hit a button. It remembers the volume and whatever tone you had previously set. If the power goes out, it comes right back on with the same tone and volume. And it just works! No fussing with loading an app, with a phone heating up or battery dying during the night, or network issues to interrupt the streaming of the white noise. So all-in-all, very happy to have purchased this and wouldn't hesitate to recommend. There is no looping. It can get pretty loud. And it just works! With these having an advertised power rating, I felt really comfortable buying it. I think it's under 3w or something like that -- and that's how it should be. Yes there are cheaper options, but do they have a noticeable loop in the sound? Do they consume very little power? Are they good build quality? Are they going to heat up or burn up or worse? I'd rather pay a bit more knowing I'm getting a quality product these days, especially if it's plugged in 24/7. This is a buy-it-once type of device that should last for years and years judging by other people's experience, so well worth the cost for something you'll use almost every single day IMO. Definitely recommended!
J**G
It works great!
I like the variety of sounds, ranging from deeper to higher pitch. It is very portable and can produce loud sounds that help block out outside noise I don't want to hear while I'm sleeping. It works great!
A**S
Lasted five years, so not bad, but.......
When I bought this in 2021 it was only $35.00. It just died last night, so it lasted 5 years. At $35.00 that's about what I would expect. But since the price has almost doubled, I just thought I would post this review so others could make their own decision. It is an okay sound machines. I've always thought it was very difficult to find a good sound and select it. There are just too many sounds that sound almost alike and you can't easily go back to one that you find. Anyway, last night in the middle of the night, very loud static was coming out of the device that was so loud that it woke me from a deep sleep. Turning the machine off didn't stop the static. Unplugging it did. But if I plug it back in, the static returns. So, it basically lasted 5 years. I definitely won't spend $65.00 to buy a new one of the same kind.
A**A
الصوت
الصوت خفيف مو مثل اللي قبل
N**A
Great little machine for canceling screaming noises
If you're living in the Netherlands, this is a lifesaver! I wish I would have known how good this is before, it'd have saved me from years of misery. It drowns the noise of screaming children outside in the daytime, so you can focus working and shouting drunkards in the night, so you can sleep. I do need to put the volume quite high to drown the noise of the children as they're VERY loud, but then the sounds are almost completely muted. I like the compact size and white color too. Maybe would be nice to have more nature sounds. Though the basic fan sounds seem to work the best for canceling out noises. Such great machine, might get a second one at some point.
M**K
Existem opções mais baratas
Existem opções mais baratas e melhores
R**O
Molto utile
Veramente molto utile. Il rumore rilassante del dispositivo copre i rumori interni o esterni stressanti. In estate con il ventilatore acceso ho notato che non sentivo i rumori fastidiosi, perchè il rumore del ventilatore li copriva, così appena ho visto questo particolare dispositivo che simula i rumori del ventilatore l'ho preso al volo. Il dispositivo è piccolo e leggero, molto più di quello che sembra guardando la foto. L'unico difetto è che non costa poco. Io l'ho pagato 70 euro e forse il prezzo giusto sarebbe 50 euro, però garantisco che fa tutto quello che dice. Da quando ce l'ho, sono più rilassato e meno stressato. Molto utile anche per chi soffre di insonnia o acufeni. Lo consiglio.
P**E
Noise not good
No continuous noise
Trustpilot
3 weeks ago
2 days ago