Transform your sleep environment with the QD01 White Noise Machine, a versatile device designed to enhance relaxation and improve sleep quality. Perfect for home, office, or nursery use, this portable sleep machine offers a range of features to suit your needs. White Noise Machine: Immerse yourself in tranquility with 7 soothing natural sounds, including bird song, insect song, water sound, rain, wind, campfire, and train sounds. These carefully curated sounds mimic the natural environment, creating a calming atmosphere conducive to restful sleep. Wireless BT Speaker: Enjoy the convenience of a dual-function device. Easily switch between white noise mode and Bluetooth mode by double-clicking the POWER button. Connect seamlessly to your smartphone or any Bluetooth-enabled device to stream your favorite music wirelessly. Please note that the timing function is not available in Bluetooth mode. Compact and Portable: Designed for portability, this lightweight sound machine fits effortlessly into your bag or suitcase, making it an ideal travel companion. Whether you're at home, in the office, or on the go, it's perfect for adults, children, and babies alike, providing soothing sounds wherever you are. Timer and Volume Controls: Customize your listening experience with adjustable timer settings and volume controls. Choose continuous play or set the auto-off timer for 15, 30, or 60 minutes. Easily adjust the volume by long-pressing the MODE button to decrease or the TIMER button to increase the sound level. Cordless & Rechargeable: Equipped with a built-in 500mAh battery, this device offers up to 15 hours of continuous use on a single charge. Recharge quickly and conveniently with the included Type-C charging cable, achieving a full charge in just about an hour. Create a peaceful sleeping environment and enjoy deep, uninterrupted sleep. Enhance your sleep therapy routine with the QD01 White Noise Machine, a perfect blend of functionality and portability, designed to help you achieve a restful night's sleep.