Specification:
Material: ABS + diving cloth
Mode: 10 modes
Stength intensity: level of 150
Power: Built-in 3.7V li-ion battery

Features:
1. Use 20 minutes just like filling the barbell 300 times.
2. Bionic micro-electric technology to achieve an autonomous muscular movement.
3. Only 6 weeks can improve muscle lines, 15 minutes a day.
4. Recommended usage times: 1 to 2 times a day and 10 to 20 minutes. 4 weeks per cycle
5. The shape is light and practical and very easy to use
6. To cancel the spare grease in order to arm more weight loss

Please note:
When in use, if you have felt that the muscle has shrunk, don't worry, this is a normal condition.