Daisheng Smart Handheld Sleep Aid Device utilizes innovative microcurrent pulse technology, delivering gentle electrical stimulation to the nervous system to effectively regulate brainwave states and help alleviate insomnia, anxiety and other sleep issues The device features an intelligent current control system that automatically adjusts pulse intensity based on individual tolerance, ensuring comfortable and safe usage. The compact portable design allows you to use it anytime - before bedtime, during work breaks, or while traveling - without time or location restrictions Available in two models: SM-218 rechargeable version and SM-118 battery-powered version. The rechargeable model features built-in high-capacity lithium battery providing multiple uses per charge; the battery model uses standard batteries for convenient replacement. Both models are manufactured with eco-friendly materials and comply with international safety standards Simple operation: Hold the device and press the start button to begin use. The device automatically operates for 15-30 minutes then shuts off, helping you relax both body and mind while improving sleep quality. Ideal for people suffering from chronic insomnia, work stress, or poor sleep quality