Experience Tranquility with Our Portable White Noise Sound Machine Diverse Sound Selection: Immerse yourself in a world of calm with nine soothing and natural sounds. Choose from white noise, wave sounds, birdsong, waterfall, cricket sounds, bicker, and three lullabies to create the perfect environment for relaxation and restful sleep. Compact and Travel-Friendly: Measuring just 8×8×3.3cm, this sound machine is designed for portability. It occupies minimal space on your bedside table and fits easily into your bag or suitcase, making it an ideal travel companion for maintaining your sleep routine on the go. Versatile Use: Beyond improving sleep quality, this white noise machine is perfect for various settings. Whether at home, in the office, a dorm, or a baby nursery, it effectively masks noise and enhances your environment wherever you need it. Energy-Saving Timer: Enjoy continuous play throughout the night or set the automatic shutdown timer for 15, 30, or 60 minutes to conserve energy. The light display feature helps you adjust your breathing for relaxation within 10 minutes. Long-Lasting Battery and Easy Charging: Equipped with a built-in lithium battery, this device offers up to 36 hours of use on a full charge. Recharge conveniently via USB in just 1.5 hours, ensuring your sound machine is always ready when you need it. Specifications: Material: ABS+PC+Silicone+Electronic Components Size: 8×8×3.3cm Input Voltage: DC5V Working Voltage: 4.2V Charging Current: 1A Power: 1W Battery Capacity: 1200mAh Charging Method: USB Certification: FCC/CE Package Includes: 1× Sound Machine 1× USB Cable 1× Instruction Manual Transform your sleep and relaxation experience with this versatile and portable white noise sound machine, designed to fit seamlessly into your lifestyle.