1. Low noise work, high frequency vibration, not noisy
2. Deep acupoint stimulation, high-frequency vibration, easier to reach the sore spots
3. Non-slip safety silicone, embedded cooling groove, handheld massage without leaving sweat
4. One button switch, easy to operate
5. Input: 5V 0.5A
6. Charging port: Micro USB
7. Battery capacity: 800mAh
8. Material: silicone
9. Size: about 7.7cm
10. Weight: about 170g