Marpac Rohm Portable White Noise Sound Machine, Electronic, White, 3.7 Ounce by Marpac

Battery can go a good run with one charge. I put it on charger during the night when I put the baby for the long sleep stretch and don’t need to move it around so much. Still, I don’t have to charge it every night. The three sounds are quite alright (soft and gentle and cannot hear a loop even if there is one), volume levels are good - I enjoy the option for rapid increase/decrease of the volume, when needed. I like that the size allows to put it my diaper bag or a purse when out. Best feature compared to other sound machines I’ve used, is that there is no timer - baby sleeps peacefully without getting startled each time a timer runs out.

It is small and light. We use it as baby sleep aid. On the down side, it will last about 2 nights before we run out of battery. It will play while charged but issue may arise if not removed every couple weeks. As we don’t travel with it, in retrospect perhaps we should have bought dohm. However it is definitely a good buy.

I've had my portable Rohm for over a year now, and I love it! It is exactly as advertised. I remember thinking it didn't work when I first got it, but after reading some of the reviews on the "power button" issue, it was no problem. This is what one review said, and I concur:" ...turning the unit over and holding down the power button until the small indicator light comes on. As soon as it comes on, I let go. Even then, there is half a second delay before I hear "noise" but it works every time. So no more holding it down for a few seconds and wondering if that was long enough." In answer to 'why do you have to hold the button down so long'? Another review suggested, and it makes sense, that it's probably to keep it from accidentally getting turned on and running the battery down. Okay, now to continue my review. I use my unit every night and prefer the quiet ocean waves setting. I place the unit about 2 ft away on a level with my head. Perfect! It is small and easy to pack also, so I've used it when traveling - awesome! The only quirky thing I've noticed is that sometimes when I plug it in to charge after sleeping 8 hrs, the amount of time to full charge seems to vary. When you plug it in, the indicator light flashes, and when it's fully charged, the light goes off. It hasn't been a problem, because I plug it in just as soon as I get up. (I also have a larger Rohm white noise machine, which I leave in place outside my bedroom door, and it works well, too, just not really a portable unit.) ADDITION 9.14.19 - I found one more great way to use this and wanted to share it. I am a highly sensitive person with anxiety disorder which can be triggered by very bright lights as well as loud or continuous mechanical sounds, low or high pitched. In addition to using the Marpac Rohm unit as a second white noise machine for sleeping, I am now using it while awake especially in my kitchen area, with no TV or other background noise playing, to block out a constant low hum from a new modem installed by my cable company. I thought I would be able to tune out this hum, but after a few days I found myself with underlying anxiety after being exposed to this new noise for only a few minutes. I got my portable white noise unit, turned on my waves and was immediately soothed. I am using it throughout the day now, for instance, while I'm reading - it helps me stay focused - or at other times when I find myself distracted. I hope this will help even one other person who deals with anxiety issues. It is a marvelous little miracle for me. I love it!

Despite its size, this unit packs plenty of oomph, providing as much or as little white noise as needed. Plus, it is portable. Very happy.

I was bothered by the stomping sound created by my neighbor living above my flat. Decided to try this noise machine and am pleasantly surprised that it works! I shared this with a few friends who bought it as well and told me that it helped them as well.