Feature:1. 9 Strength Frequency: Electric spine chiropractor with 9 strength gears and 9 frequency gears for you to be adjusted, which can provide stable and powerful force.2. 4 Massage Heads: Spine chiropractor massager has 4 replaceable heads, with different functions, which can be used to and massage your different body parts.3. Promote Recovery: Electric spine massager can provide comfortable massage to stimulate the normal function of nerve cells and organs, so that the body function quickly recovery.4. Wide Application: Spine chiropractic massager can be used for joint relief, cervical adjustment, thoracic disease, cervical spondylosis, body treatment, and so on.5. Cooling Fan: Chiropractic adjusting massager is made of ABS material, built in a cooling fan to cool the machine, which can effectively extend the service life.Specification:Item Type: Electric Spine ChiropractorMaterial: ABSVoltage: 100-240VStrength Setting(P+, P-): "1"= 100N, "2" =200N, "3"= 300N, "4"=400N, "5"= 500N, "6"= 600N, "7"= 700N, "8"= 800N, "9"= 900NFrequency Setting (F+, F-): 1 to 9(slow to fast)Function:1. Body massage: provide stable and powerful force, more effective and more comfortable massage.2. It is suitable for scoliosis, thoracic and spine soreness, and can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, and body massage for health care.3. The principle of physical pressure massage: imitate human hand massage, adjust bones, straighten the spine, immediately dredge upright, get rid of pain, and make people refreshed and energetic. It can be in contact with the skin under 2.3cm to effecti