Feature:1. perfect for sleep sound machines!2. with a rechargeable power supply, providing a quiet sleeping environment will be easier.3. safe for adults and children, this device is a must-ter for every room.4. Have a good night's sleep with our white nois Pacifier.5. Built-in 6 natural sleep soundsFunction of sleep instrument: Sleep is precious to everyone, but insomnia is a very painful thing. It will not only make you listless the next day, but also may cause hidden damage to your body. This product can effectively help you quickly enter sleep state and improve sleep effect.Timer setting, 15/30/45 minutesMaterial: ABS+PC; Sound intensity: 3-300sHost size: 120*120*45mmColor box size: 130*53*137mmNote: The data are all measured manually, please allow 1-3cm error; due to differences in light and display, there may be some color difference, please refer to the actual product received.