1. Press and hold the power button for 1.5S, the product will turn on, the LED light will turn green, and the product will enter sleep mode (5 levels in total); double-click the button to switch modes, the LED light will turn red, and enter the excitement mode (- - 5 levels in total); press and hold Press the power button for 1.5 seconds and the product will automatically shut down. 2. Push the sliding switch forward and the light will turn on. Push the switch back and the light will go out. The light can work alone whether the product is working or not (it can also work when charging). 3. The product cannot be used when charging (except for the lighting). The red light flashes when charging and turns off when fully charged. This new portable smart sleep device is an ideal choice for you to improve your sleep quality and enjoy a good night's sleep. Handheld design, easy to carry, allowing you to enjoy a soothing sleep experience anytime, anywhere. The device has a built-in charging function, which is convenient and fast, so there is no need to worry about the battery running out. Through unique technology, it releases soft audio and light to effectively regulate your physical and mental state, helping you relax and enter deep sleep. This smart sleep device not only improves sleep quality, but also provides you with a comfortable sleep experience, allowing you to wake up full of energy and vitality every day.