Eight functions protect 15 kinds of sleep AIDS, timing, memory, stepless dimming and colorful lighting. 15 kinds of , nightlight, relaxing pressure to help sleep, stepless dimming, USB plug and play. Noise shielding, timing function, memory function Shielding Noise Shielding Environmental Noise Makes Learning More Concentrated. 30 kinds of atmosphere, soft lights, warm lights, warm and comfortable night lights, decompression. Color: White Material: ABS Package Contents: 1 xNightlight 1 xUSB 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.