Specification:
Product material: nylon belt, ABS
- Product weight: 85g
- Working voltage: 5V
- Rated power: 0.4W
- Charging time: about 2 hours
- Product battery: 500mAh lithium polymer battery/3.7V
- Product functions: spinal correction, stretch and expand chest, improve hunchback and protect vision
- Applicable population: children/adults for men and women
