Feature: 1. POWERFUL FUNCTION: This sleep aid mainly helps people with insufficient sleep and poor mental quality fall asleep as soon as possible. It has the effect of relieving head discomfort, relieving anxiety. 2. PHYSICAL SLEEP AID: Pulse comfort and music sleep aid principle, physical methods to promote sleep. With this product, both hands can be properly stimulated, thus relieving anxiety at the same hand and brain frequency. 3. STIMULATE ACUPITAL POINTS: Sleep aid device helps you to stay away from medication, stimulate acupoints, promote relaxation and release stress, help you get a excellent night sleep. 4. 9 MODES: Sleep aid device has 9 modes, pulse mode and 9 adjustable strengths. 9 strengths, different gears for different insomnia people. 5. USB RECHARGEABLE, WIDELY USED: Handheld sleep instrument is lightweight, small in size and easy to operate. usb charging is fast and easy to use. Can be used in office, home and business trip. Specification: Item Type: Sleep Aid Device Material: ABS, Alloy, Electronic Components Size: Approx. 8.5x4.5cm / 3.3x1.8in Battery: Lithium Ion Battery 200mAh (Shipped with Built In Battery) Rated Voltage: 3.7V Rated Current: 25mA Rated Power: 0.1W Input Voltage: 5V 1A Mode: 9 Speeds Strength: 9 Speeds. Package List: 1 x Sleep Aid Device1 x Lanyard1 x USB Charging Cable1 x Manual Note: 1. The product can not be turned on when charging.2. Long press the power button to switch on and off.3. The battery indicator light breathes when charging, and the battery indicator light is always on when full.4. For the first time use, please pay attention to adjust the gears step by step to find the mode and strength suitable for you.5. Manual measurement please allow some error.