Feature: 1. Anxiety Relief: Actives cortical neurotransmitters through microcurrent to regulate mood and promote sleep, so that the frequency of the hand and brain is consistent, relieve anxiety, promote relaxation. 2. Improve Sleep Quality: CES effectively improves the secretion of various neurotransmitters in the body, and the sleep device help relieve stress, help fall asleep, and improve sleep quality. 3. Relax Quickly: Handheld sleep device takes only 20 minutes to make you more relaxed and has the ability to relieve migraines, relieve anxiety and release stress. 4. Easy to Use: The sleep instrument can be connected to a computer USB port, mobile power, power supply, etc. with long battery life. 5. Applicable Scenarios: Using a sleep aid in the office or study area can help you focus on what is important and get the job done efficiently. Specification: Item Type: Handheld Sleep Device Material: Plastic, Stainless Steel Product Size: Approx. 7 x 3.2 x 2.5cm / 2.8 x 1.3 x 1in Battery Type: Lithium Battery 3.7V500mAh (built in) . Package List: 1 x Sleep Aid Device1 x USB Cable1 x Instruction Manual