The white noise machine is made of 8 different noise effects, which can be played individually or together based on your personal preference. Allowing you to freely customize your favorite sound combinations. Experience studio-grade sound quality with wide-range speakers that evenly distribute soothing frequencies. Noise-canceling technology ensures crisp, distortion-free audio even at low volumes for uninterrupted relaxation. Intuitive touch controls and Bluetooth connectivity allow quick adjustments via app or manual interface. Beyond sleep, use it as a focus booster for work/study, a calming companion for babies' naps, or a meditation aid. Includes optional nature sound updates and memory card slot for adding custom tracks. Parameters Product model: C221 Product size: 200 x 130 x 90 mm Input current: DC 5V/2A Water tank capacity: 200mL volume: 15-20ml/h Timer shutdown: 30/60/120min Sound power: 10W Color: White Material: plastic Package Contents: 1 x White Noise Sound Machine 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.