26 Soothing Sounds - The baby sleep machine has 26 soothing sounds, including white noise, fan sound, hair dryer sound, clock sound, water drop sound, cricket sound, , wave sound, wind sound and so on, which helps block disruptive environmental noises and makes you or your baby fall asleep easier and . Precise Volume & Setting - Supports precise volume adjusting and 15min/ 30min/ 60min/ 90min setting functions, you can use this white noise sound machine to built a comfortable environment baby sleeping. Soft Night Light & Vibration Sleep Aid - The sleep sound machine is equipped with LED night light, which can give off soft light that 't irritate babies or disturb their sleep. The sleep machine also support vibration sleep aid mode, which can through vibration transmission to relieve fatigue, good for sleep. Built-in Rechargeable Battery - With built-in 300mAh battery that can be recharged by the included USB cable, the baby sound machine supports about 15H long time usage after being fully , no need to worry about power off problems. Compact & Portable for Travel - Compact size design, and net weight is only about 90g. Comes with a lanyard, you can hang the baby sleep machine on the stroller or crib easily and take it with you when go for a walk with baby. Power:1W Music:26 :15min/30min/60min/90min Battery Capacity:300mAh Charging Port:Micro-USB Input:DC 5V 0-1.0A Charging Time:1.5H Working Time:about 15H Item Weight:90g/3.2oz Colour:White Material:ABS Size:11.9x7.1x3.6cm/ 4.7x2.8x1.4in Package Contents: 1 * White Noise Machine 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.