Compact device to promote deep sleep. - Product Name: Sleeping Instrument - Accessories: USB cable - Function: Sleep improvement - Design: Compact and easy to carry 【Ultrasonic Sleep Aid】 Adopting the latest CES microcurrent technology, it relaxes the whole body through low-frequency current and vibration, relieves tension, and allows you to fall asleep quickly. 【6 Types of EMS and 10-Level Intensity Adjustment】 Offers a variety of EMS and intensity levels, adjustable according to individual preferences and needs. Please try the lowest level when using it for the first time. 【Safety and Comfort】 Uses high-quality electrode materials, ensuring safety and comfort during use. Equipped with a smart sensor system, it automatically shuts down if there is no contact for 40 seconds. 【20-Minute Auto-Off Function】 No need to turn it off manually; it automatically turns off after 20 minutes of use. Prevents overuse of the device. Especially ideal for use before bed, providing a convenient and safe user experience.