1. 22 Soothing Sounds for All Ages: The Baby White Noise Machine offers 22 calming sounds, including a range of white noise, fan, and nature sounds. Perfect for babies with womb heartbeat and fetal sounds, but also ideal for children and adults as a versatile sleep machine. 2. Colorful Night Light Feature: In addition to being a sleep machine, this device doubles as a soothing night light, blocking noise interference and creating the perfect environment for rest and relaxation. 3. Long Battery Life: The Baby Sleep Sound Player is equipped with a powerful portable battery, offering up to 15-30 hours of playtime. Take the machine anywhere without worrying about running out of battery. 4. Smart Timer for Efficient Use: The Portable White Noise Machine features a smart timer with options for continuous play or 30, 60, or 90-minute settings. It will automatically shut off after the set time, ensuring efficient, eco-friendly, and safe use. 5. High-Quality, Eco-Friendly Material: Made from premium, eco-friendly Material, the Baby Sleep Sound Machine is durable, odorless, and safe. Speaker Type: Portable Communication: WireLess Battery: Yes Channels: 5.0 Power Source: Battery Number of Loudspeaker Enclosure: 1 Audio Crossover: Full-Range Intelligent Personal Assistant: none Input Power(W): Less than 25 W Use: Home Category: Speakers Sound Mode: Standard Mode Input/Output: USB Input Voltage: DC5V=0.8A Working Voltage: 3.7V Charging Voltage: 110-240V Battery Capacity: Polymer 1200mAh Rated Power: 3W Usage Time: 15-30 Hours Charging Time: 1.5 Hours Product Size 95x95x37mm/3.74x3.74x1.46inch Net Weight: 108g Note:the picture is the effect of lighting. Colour:White Material:Plastic Package Contents: 1 * White Noise S