Features: Dual-function Device: This 2-in-1 white noise and microcurrent pulse sleep aid device offers both white noise relaxation and microcurrent pulse therapy, providing a better sleep experience. Mini and portable, it is suitable for home and travel use. Adjustable Pulse Modes: Choose from 3 adjustable pulse modes - Relaxing, Soothing, and Sleep modes, and it helps you unwind and promote better sleep. Easily adjust the pulse intensity with the rotary knob to suit your comfort level. White Noise Mode: Simply double click to activate the white noise mode. The device offers 9 different white noise options, and the volume can be adjusted, providing instant soothing sounds to help you or your child relax and fall asleep faster. Auto Shut-off: The sleeping machine automatically shuts off after 15 minutes of continuous use in the same pulse mode or playing the same white noise track, allowing you to enjoy a peaceful sleep without worrying about turning off the device. Portable and Convenient: With a built-in 500mAh lithium battery and Type-C charging, this device is portable and easy to recharge. It comes with a lanyard, allowing you to wear it on your wrist for convenient access wherever you go. Specifications: Battery Capacity: 3.7V 500mAh Charging Time: 1-2 hours Charging Port: Type-C Input Power: DC 5V 1A Working Power: 0.5W Material: ABS, Silicone Color: White, Orange, Dark Blue (Optional) Item Size: 6.6*3.8*3.8cm/2.59*1.49*1.49in Item Weight: 35g/1.23oz Package Size: 9.5*9.5*5.8cm/3.74*3.74*2.28in Package Weight: 75g/2.64oz Package List: 1 * White Noise Pulse Sleeping Machine 1 * Type-C Charging Cable 1 * Lanyard 1 * User Manual (English/Chinese)