Feature 1Timer Setting: The device allows for timed settings of 15, 30, or 60 minutes, giving you the freedom to control your sleep aid duration. 2Night Light Function: Sound machine features a soft and warm toned night light, creating a comfortable sleep environment for your baby. 328 Sounds: With a diverse selection of 28 sleeping assistant sounds options, you can choose the perfect sound to meet your preferences and needs. 4Lightweight and Portable: The compact design of the sound machine makes it easy to carry around, whether at home or during your travels. 5Practical Design: White noise machine is designed to be user friendly, with simple buttons that parents can operate easily. Flexible to meet your use needs.Item Type:WhiteNoiseMachineMaterial: Plastic + electronic componentsProduct Size: Approx. 11x11x5.5cm/4.33x4.33x2.16inBattery: 3.7v lithium battery 1200mAh (shipped with built in battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x WhiteNoiseMachine1 x Charging Cable1 x User ManualNote1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.