Instruct: Classify a review into positive or negative sentiment.
Query: Nice Sounds, Low Quality

I have used white noise generators for many years. I wanted a light-weight battery operated one for foreign travel and camping where electrical power is not readily available. For this purpose the unit works moderately well. The only useful sound for me is the waterfalls sound. This is the only frequency that will partially drown out low frequency sounds like snoring. Other sounds are cute but not too useful and, in fact, distracting.I have found the same defect as other reviewers. The on/off/volume switch is of poor quality. It malfunctioned early on. The unit will still work but one has to "exercise" the knob to get it to work. Sometimes the unit simply shuts off by itself in the middle of the night. Hometics needs to spend more then $0.25 on the switch.