【34 Soothing Sounds】 Built in 34 soothing sounds, including white noise, fan sounds, birdsong, ocean waves, lullaby, thunderstorm, etc, which helps block disruptive environmental noises and let baby fall asleep easier and deeper. 【7 Colors Night Light】 Supports 7 colors nigh light with adjustable brightness(Warm/ Red/ Green/ Yellow/ Purple/ Blue/ Light Blue), which can fix color or change color in cycle. Soft and gentle night lights that won't irritate babies or disturb their sleep. 【Precise Volume Adjusting & Timer Setting】 Supports 32 levels of precise volume adjusting, 30min/60min/90min timer setting, you can built a comfortable environment freely, very suitable for baby sleeping. 【Built-in Rechargeable Battery】 Built-in 1800mAh large capacity lithium battery, up to 10H working time after being fully charged and can be recharged via USB cable conveniently. And the sleep sound machine can automatically remember the last sound and light status. Specifications: Color: White Battery Capacity: 1800mA Charging Port: Type-C Input: DC 5V Timer: 30min/60min/90min Light Color: 7 Soothing Sounds: 34 Item Size: 9.6 * 6.15cm/ 3.78 * 2.42in Item Weight: 180g/ 6.3oz Packing List: 1 * Sleep Machine 1 * USB Charging Cable