Description: Comfortable And Stable: Sleep aid device has a clip on-ear appearance, comfortable ear clips, stable and not falling off, and silicone veneer, giving you double comfort and allowing you to sleep peacefully. 9 Gears And 3 Mode Adjustments: CES sleep aid machine has 0-9 gears that can be adjusted freely. There are three modes for you to choose from, which are comfort mode, stimulation mode and strengthening mode. Long Battery Life: CES device can be charged for 4-5 hours at a time, and can last for 14 days with 30 minutes of daily use, saving time and worry. Small And Portable: Ear clip sleep aid, size 13.6cmx6.5cmx1.8cm/5.35inchx2.56inchx0.71inch, small and easy to carry. Can be used at home, office. Ces Sleep Relief Device: Sleep aid device instrument is a good helper to help you improve your sleep, and it is also a perfect gift for family and friends. Specification: Material: ABS Battery capacity: 1500mAh Input: 5V 1A Working current: 0.2A-1.3A Working power: 0.5W Power mode: USB Function: handheld wire control Display mode: LED liquid crystal display Size Chart: 13.6cmx6.5cmx1.8cm/5.35inchx2.56inchx0.71inch Package Includes: 1x Sleep Aid Device 1x Ear clip working line 1x Salt water bottle 1x Type c cable 1x Manual 10x Conductive cotton 1x Certificate 1x Accessory Note: Please allow slightly errors due to manual measurement and different monitors.