Features: 1. REDUCE ANXIETY: Stimulates hands correctly, synchronizing hand-brain frequency to relieve anxiety. Safe, promotes relaxation, releases stress, and aids sleep. 2. IMPROVE SLEEP: This sleep aid device primarily helps with insomnia, aiding in falling asleep and improving sleep quality. Consistent use for half a month is recommended. 3. EASY TO USE: Place the pulse sleep aid device in your right hand, gripping it so the electrode is centered. 4. EASY TO CARRY: Compact and wireless design allows for use anytime, anywhere. The lanyard can be attached to your wrist to prevent drops and breakage. 5. USAGE: The sleep aid can be used for studying, office work, home, and business trips. Use for 20 minutes daily to relieve headaches, eliminate stress, anxiety, and sleep problems. Specification: Item Type: Handheld Sleep Aid Device Material: ABS, Electronic Components Size: Approx. 40 x 37 x 67 mm / 1.57 x 1.46 x 2.64 inches Battery: Lithium Battery, 5V, 300mAh (built-in) Package List: 1 x Handheld Sleep Aid Device 1 x Instruction Manual 1 x USB Cable