1. Body material: aluminum alloy
2. Rated voltage: 8.4V
3. Charging port: USB
4. Stroke: 7.5 mm
5. Power supply: 2000 mAh lithium battery
6. Speed: 1200-3200 rpm
7. Massage head: ball head, U head, cone head, flat head
8. Large-capacity lithium battery, 60 days long-lasting battery life
9. Brushless motor, high output power, strong and stable
10. Small and convenient, easy to carry
11. Comfortable hand feel, shock absorption and no numbness
12. One-button design, one-handed operation
13. Weight: about 400 grams
14. Size: about 9.2x14 cm