Marpac Marsona Tsci-330 Travel Sound Machine Review

The level of excellence that the Marpac Marsona TSC-330 has shown astounded us significantly. Our ‘330’ has now operated continuously for more than 17,500 hours without a break! That’s more than two years! If you choose to leave it on for eight hours every night, you will have enjoyed six years of worry-free functioning at this point.

First Impressions

First Impressions to pick the wave sound in order to imitate waves rushing in and to select the wave sound in order to simulate waves rushing in and out. First Impressions to select the wave sound in order to simulate waves rushing in and out.

The tone slide controls are labeled with the words “rain” and “waterfall.” However, this is better understood as a tone control, even if at its most severe settings it may sound like rain or a waterfall. You are free to adjust the settings to exactly how you want them.


The whole of the system barely weighs one pound and one ounce and has dimensions of 7.5 inches by 4.5 inches by 2.25 inches. There are some resellers who provide an international version of the product that comes with a power adapter suitable for usage in both the United States and internationally. If you do not have access to electricity, you will need to purchase the optional battery pack, which will cost you around $15.00. It has a capacity for six AA batteries and can operate for up to forty hours on a single charge.

Sound Quality

The TSC-300 is the only electronic sound or white noise machine that does not have a looping function that we have located. The quality is very impressive! We like the fact that the volume may be changed. We were successful in achieving extremely high volume levels without experiencing any distortion.
Maximum volume measured at 18″ above unit at full loudness is 66 decibels.


Prices of $79.95 for the domestic model and $89.95 for the international version are the suggested retail prices (TSC-330I). On the internet, we were able to locate it sold at a lower price.


We are huge fans of the 330, and we highly suggest it for both every day and traveling usage.

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