Attracts different size insects with effect. Efficient blue light at night. Does what the item description saysit does with promised effectiveness.

I've had one of these for nearly 15 years now and love it so much I bought one for my sister in law. I just bought a third machine because a relative visited and loved it so much I gave mine to him. This portable Yogasleep Zohne manufactured by Marpac is small and perfect for travel but most importantly has the really excellent, deep base sound that is essential for blocking out noise. Most Noise Machines, including the large ones, are lacking the deep base range. The high-pitched-tinny treble noise does NOT block out the deeper noises like dogs barking and car doors slamming. The deep base (like the deep rich Bose stereo speaker sound) is what blocks out those noises. Unfortunately I'm sad to see there is one consistent defect with this particular portable machine that is annoying. All 3 units I purchased have faulty wiring connection in the plug/wire connection area where it attaches to the back of the machine. When you turn it on, any touching or jiggling of that plug/wire on the back causes the sound to cut in and out. It seems like eventually, these loose wires will break apart and it won't work. Which would be a pretty expensive loss at $78.24. I also own several of the large round Yogasleep Dohm units also manufactured by Marpac and these are bulletproof and work forever, have deep rich basey sound, and are PERFECT. I'm on the fence with this one though as I think it should work perfect from the start. But I do love it.

We have 2-one for home one for travel. Both are great.

I have been using this for years as asleep aid. I bought this one for my wife who is now having trouble sleeping. It does not come with a battery pack (useful for foreign travel) but that is available.

Couldn't ask for a better sound machine.

I have one in every bedroom and take one to travel with. I love them.

I have trouble sleeping. I need a sound machine that's pretty loud and can block out all noise. I have tried other sound machines but this one works best for me. It's small and practical to travel with. It also comes in a bag and has adapters for other countries. I have purchased this product three times. Only issue with this product is the cord has stopped working a few times hence why I've bought it three times but is that good.

My son struggles with tinnitus and has difficult sleeping due to the constant ringing. First night with this machine and huge improvement. He swears by it and says it's life changing. Hope this helps others who have the same issues.

This is a work horse of a machine. It's the third one we've owned.Wish it had a battery but we tried others by this brand with batteries and they were nowhere near the quality of this guy (they all broke within weeks).

I've been using this for travelling for the past 3 years and it is perfect for drowning out annoying sounds. It has worked perfectly so far in North America, Europe and the Caribbean.

I've been using this sound machine for three months since juggling my fan noise machine between bedroom and office. This is now my permanent bedroom sound machine because of the unique noise it puts me in a more relaxed state to fall asleep. The sound adjustment is spectacular between rain and waterfall to provide that perfect ambiance.I took it on a short trip and slept great in the motel. It was drowning out the rattling air conditioner and snoring partner.

This machine can be a life-saver--if, like me, you happen to be sensitive to external sounds, AND if such sounds either impinge on your ability to work OR if they simply make you mad as hell! I fit into both categories. I bought 3 of these machines about 10 years ago--Marsona was the manufacturer. this is the same device. and it is just as fantastic. True tale: I have had one of my 3 Marsonas in the on position, playing white-noise waves, for 10 years. I mean without interruption! I gave 2 of the units away to a friend in need....but now I need another unit for another room of my NYC apartment, where noise from outside is making me crazy. This is the original device--it works just like the old one. I cannot more highly recommend it for those in need!!

The other brands tried were better.

We love this machine! The 2 settings are perfect. We bought one like 20 years ago, same brand and it still working without missing one night! Totally recommended.

This machine lasted only a couple months and then started making rattling noises. I contacted customer service about the warranty. I was told I could get a new one but had to call customer service. No one ever picks up the phone so that I can process the return and get a new unit. Far to expensive of a machine to have such HORRIBLE CUSTOMER SERVICE

Expensive but great quality

When my husband gets up, I set the tone level to mask his footsteps on the hardwood floor. When the birds start chirping in the morning and I'm still trying to get some sleep, I turn the pitch up higher to match the birds and then sleep right through all the bird noise!

Excellent machine. This is my third purchase, each one lasted at least 15 years.

I bought this for my son. He loves it. A lot smaller than the old machines. Sound is non wavering. Doesn't skip. I've had mine for years. I recommend blowing out the dust that collects inside the unit with a blow dryer. Its a little pricey, but well worth the money.

I have used Marpac white noise machines for many years. They are the only white noise machine that isn't a cheap sound loop with clicks and pops when it repeats. I travel a lot and have one just for travel that stays in my suitcase. I was worried that the newer model wouldn't sound as good and not be as loud, but after using one I am VERY happy with them. They actually improved them. The sound is a little louder and the quality of the white noise is just as good. Highly recomend!