Feature:1. 9 Levels Of Strength Can Be Adjusted: 100‑200‑300‑400‑500‑600‑700‑800‑900N to meet your various needs, the keys are clear and easy to operate.2. 8 Physiotherapy Heads: With 8 replaceable physiotherapy heads for treating different parts of the body, easy to install and disassemble, provide stable and powerful strength, comfortable massage.3. Promote Body Function Recovery: Can stimulate the normal function of nerve cells and organs, so that the body function can be quickly restored. Can be used for joint relief, cervical spine adjustment, thoracic spondylosis, cervical spondylosis, body treatment.4. Principle Of Physical Pressure Massage: imitate human hand massage, adjust bones, straighten the spine, immediately dredge and upright, get rid of pain, and make people refreshed and energetic.5. Cooling Fan: Built in high frequency cooling fan to cool the machine to extend the service life. Made of high quality material, safe and eco friendly, firm and stable, durable for use.How to Use:1. When using, it is forbidden to hit the air.2. Adjust the bottom massage head according to the needs of use.Operating Instructions: 1. Power on.2. Put the handle of the chiropractic adjustment tool on the palm of your hand. Place the rubber head on the body part to be hit, adjust the strength and frequency, and press the trigger of the chiropractic adjustment too