1. EMS pulse stimulation, help you fall asleep quickly
2. Two modes + 20 gears, you can adjust freely
3. High-quality wristband, skin-friendly and comfortable
4. Material: ABS material + stainless steel process
5. Gear: 20 gear adjustment mode
6. Current: 5V/1A
7. Interface: Type-C/USB-C
8. Battery capacity: 300 mAh polymer lithium battery
9. Charging time: about 3 hours
10. Endurance time: about 1-3 hours
11. Product size: 82 x 42 x 28mm
12. Net weight: about 38g

ng list:
- Sleep meter x 1
- Charging cable x 1
- Instruction manual x 1