Features: Portable size, mini, lovely and lightweight, equipped with a silicone strap, perfect for outdoor use, easy to be attached to baby stroller or crib. If you want to turn off the machine, you need to press the switch to turn it off. This machine helps to create the atmosphere of quiet, makes baby fall asleep faster. Adjustable volume enables you to get the sound depending on your need. Comes with 12 soothing sounds, easy to operate. Specifications: Type: Baby Sleep Soothers Material: ABS Working Voltage: 3V Battery: 3 * 1.5V AAA Battery(Not Included) Color: Grey Package Size: Approx. 11 * 10 * 6cm / 4.33 * 3.94 * 2.36in Package Weight: Approx. 190g / 6.7oz Package List: 1 * Sleep Help Device 1 * User Manual