Feature:1. 30 levels of strength can be adjusted to meet your various needs, simple button design, easy to operate.2. Built-in high-frequency cooling fan, can cool the machine to extend the service life, considerate design.3. With 6 replaceable physiotherapy heads for treating different parts of the body, easy to replace and use.4. Can stimulate the normal function of nerve cells and organs, so that the body function can be quickly restored.5. Can be used for joint relief, cervical spine adjustment, thoracic spondylosis, cervical spondylosis, body treatment.How to Use:1. Choose a suitable physiotherapy head and install it at the place where the physiotherapy head is replaced2. Turn on the power, short press the button "ON/OFF" to turn on, and press again to turn off.3. Adjust the hitting speed, short press the button "frequency", the screen will display the corresponding hitting speed "low frequency" or "medium frequency" or "high frequency" or "super frequency" or "variable frequency", choose the appropriate hitting speed according to your needs.4. Adjust the maximum number of single consecutive hits, short press the button "The number of", the screen displays the corresponding hits "1