Specification: Condition: Brand New Item Type: Holding Sleep Instrument Material: ABS Mode: Sleep Aid Inspiration Power Supply Mode: USB Charging Battery Capacity: 500mAh Input Voltage: DC 5V 1A Working Power: 0.5w Endurance Time: 20 Hours Suggested Use Time: 15 Minutes How to Use: To put the front of the product completely in your hand: Press the power button is the low-frequency decompression mode, which is recommended for left hand. Pressing the power button again is the high-frequency encouragement mode, which is recommended for the right hand. Adjust power with - keys on both sides Long press the power button to shut down. Package List: 1 x Host 1 x Manual 1 x USB Cable Note: 1. It is forbidden to use with implanted medical appliances, such as pacemakers, which may cause equipment failure or trigger danger. 2. Do not use this product if the palm has skin problems such as wounds, eczema, blisters, peeling, etc. 3. Do not use this product in places with high humidity such as bathrooms. Do not use this product for any purpose other than its intended purpose. 4. Do not hand this product to children under the age of six to avoid personal injury 5. Do not disassemble, repair or modify this product without permission. May cause equipment failure or injury. For the sake of patient safety, we recommend not to use sleep devices in the following situations: 1. When driving 2. When operating complex dangerous mechanical instruments. 3. Avoid long-term strong current stimulating the same position 4. If you find that the skin is burned, you can rest for a few minutes in future use, and move the electrode position slightly before continuing treatment 5. If you find that the electrode burns the skin severely, you should stop using it in time, and use it after treatment and rehabilitation by a specialist. 6.The productUSB convenient charging, can be connected to a computer USB port, power bank, power supply, etc., long endurance. Extremely light weight: easy to use, at home, in the car, while travelling, and everywhere you wish.Press the metal surface of the product into the palm of your hand and hold it. Anxiety, depression, insomnia and stress relief. Various Applications– It can be used in the office, at home, moderately relieve headaches 15 minutes a day, let you get rid of insomnia, anxiety, sleep depression, insomnia, and help patients get good sleep. Keep calm: This product is small and convenient, and can be carried around. When this product is used, it will properly stimulate the hands, make the hands and brain at the same frequency, relieve anxiety and give people a sense of calm. SURPRISE GIFT : Using this product, you can help you fall asleep faster and relax completely during sleep. For friends with sleep problems, this is a good gift.