Why the machine won't vibrate? 

Please take off the cover on the massage head when using. If not, it will not vibrate. 

Specifications:

Notes for Equipment at Use:

1. Long press the power button for over 1.5s to turn on the device; it cannot be used when charging

2. It will start standby mode after 4 minutes, and it will automatically shut off after 1 minute of no-operation.

3. Each mode can only be used once each day, and it is recommended that three modes are used in succession once each day.

4. This product adopts micro-current ion technology, so light current sense is normal phenomenon, and please be assured to use it.

5. Wipe the introduction head with tissues, refrain from washing it with water and from touching metals

6. It is generally not advisable for people who have undergone facial plastic surgery, subcutaneous metal implant and those who are pregnant or within the period to use this product.