*KeyFeatures *21 Soothing Sleep Music Tracks: This sound machine features 21 high-fidelity sound effects, including 5 white noise tracks, 5 fan sounds, and 11 natural sound effects. It supports weekly playback without repetition, helping you fall asleep easily while offering a refreshed experience each week to meet your various needs *Soft Ambient Lighting: The white noise sound machine has a ring-shaped soft light on top that lights up with a simple press, providing the ideal dim light to help you adjust the volume and switch sound effects in the middle of the night without disturbing your sleep. The light is soft and glare-free, ensuring a high-quality sleep environment *Long-lasting Battery Life: This portable white noise machine uses a convenient USB charging method, allowing you to recharge anytime, anywhere. With a battery capacity of up to 1800mAh, you dont need to worry about running out of power and can enjoy a peaceful nights sleep without interruptions *Intelligent Sleep Function: Oursleep machine features a timer function, allowing you to set a 30, 60, or 90-minute countdown based on your needs to avoid disturbances during the night and ensure a peaceful sleep. It also has an intelligent memory function, enabling one-click activation of the previous settings so you dont need to adjust them again *Portable and Secure: The white noise machine has a soft silicone ring, making it lightweight and easy to hang. It can be securely attached to a stroller, crib, or backpack, allowing you to carry it effortlessly when out and about. With just one press, you can activate white noise anytime and anywhere, creating a familiar and comforting sleep environment for your baby ******************************************************************************************************* *Specifications Item Model Number: HFD-W13 Number of Soothing Sounds: 21 Lithium Battery: Single 18650 Cell, 3.7V / 1800mAh Net Weight: 0.51 lbs / 0.23 kg Product Dimensions: 3.78 x 3.78 x 1.57 in / 96 x 96 x 40 mm ******************************************************************************************************* *Pakcage Content 1 x Sound Machine 1 x Charging Cable 1 x User Manual