Specification Product Name: Insomnia Meter Product material: ABS metal Manufacturer's Recommendation: Adult Unisex Packing: color box Product Features: Improve sleep quality Product style: white green (random delivery) Product packaging: 1XCharging interface: USB. DAY AND NIGHT USE - Handheld sleep aid device is dual purpose for relaxing sleep and exercise. Relax mode is recommended for the left hand. Improve sleep quality - Sleep quality determines quality of life. Sleep aids help you with various sleep problems, life stress, anxiety, depression, difficulty falling asleep and waking up in the middle of the night. Sleep aid microcurrents improve sleep physiologically and stimulate neurotransmitters in the cerebral cortex through microcurrents. FEATURES - The sleep aid device helps you fall into deep sleep, which is the secret to falling asleep fast. Promotes sleep - This sleep aid device can regulate mood, promote sleep, regulate physiology, reject the side effects of drugs without harming the body.