fiil Sleep Aid Device SLEEPING INSTRUMENT I am selling this as I have never used it since purchasing it. It's lightweight, so it might be good to carry when traveling. 【Ultrasonic Sleep Aid Device】 Adopting the latest CES microcurrent technology, it relaxes the whole body through low-frequency current and vibration, relieves tension, and helps you fall asleep quickly. 【Ergonomic Design】 Designed to fit in your hand, it is lightweight and quiet, so you won't feel any burden. With a simple one-button operation, you can easily start and adjust the device. It can be easily used by the elderly. 【6 Types of EMS and 10 Levels of Intensity Adjustment】 It 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 to ensure 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 excessive use of the device. It is especially suitable for use before bedtime, providing a convenient and safe user experience.