fiil Sleep Aid Device SLEEPING INSTRUMENT I purchased this for my family, but they hardly used it, so I'm selling it. 【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 comfortably in your hand, it's lightweight and quiet, so you won't feel any burden. Simple one-button operation allows you to easily start and adjust the device. It's easy to use even for the elderly. 【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 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's especially ideal for use before bedtime, providing a convenient and safe user experience.