Nova Tech US via Amazon offers the Nursal White Noise Machine in White for $28.99. Coupon code "X9TS6BJK" knocks that to $23.19. Plus, Prime members receive free shipping. That's $16 off and the lowest price we could find, although we saw it for $6 less in August. Features include eight sounds, an auto-off timer, alarm, and time and date display. It can be powered by the included wall adapter or three AA batteries (not included). Deal ends February 28.