1. Immersive white noise experience, built-in 32 selected square white noises, such as delicate rain, gentle waves, quiet forest, etc. 2. Colorful sleep-aiding lights, equipped with colorful sleep-aiding lights,Light system, using 5050 fantasy color LED technology,Soft colors and varied 3. Smart Bluetooth playback, support Bluetooth 5.0 high-speed connection, seamless docking with your mobile phone, tablet and other devices 4. Smart clock and alarm clock, built-in high-precision clock module, clear display of time, and support for personalized alarm settings Input voltage: DC 5V/2A Working power: 3W Speaker: 52MM-40-5W White noise source: 32 songs Music: Bluetooth playback Decibel: 35-45dB LED: 5050 fantasy colors Lighting: 8 types, 3,000 color temperatures. Timing: 30min/60min/90min/120min/240min Charging time: 1.5H Usage time: 5H Charging interface: Type-C Colour:Light Gray Material:ABS Package Contents: 1 x Music sleep aid 1 x data 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.