1. Material: PC
2. Built-in 24 volcanic magnets
3. Impulse vibration
4. Magnetic therapy massage
5. Suitable for all ages
6. Product accessories: electronic watches, sliding parts, steel balls
7. Applicable scenarios: fitness, health massage
8. Electronic counting technology
9. Charge at any time, with MICRO USB interface
10. Power: 3.7 watts
11. Voltage: 9V
12. Battery: built-in 18650 mAh lithium battery
13. Weight: 1.16kg
14. The outer diameter is 36cm, the inner diameter is 32cm