[4 Interchangable Heads]: Equipped with four types of connectors, including large U-head, small U-head, single pressure head, T-shaped head. Activate muscles, stimulate blood circulation, increase range of motion, relieve pain, relieve muscle pain and stiffness [3 Levels of Intensity]: Advanced pulse technology is used to simulate professional techniques through adjustable high-frequency vibration. Its pulse wave can penetrate up to 5cm of skin, with 3 adjustable levels that users can freely adjust according to their own needs [Improve Joint Pain]: Chiropractic adjusting tool is an adjusting instrument intended for adjustment, mobilization or manipulation of the musculoskeletal joints of the spine and extremities [Body Massage Relax]: Suitable for scoliosis, thoracic spondylosis, cervical spondylosis, body treatment. Can stimulate nerve cell and the normal function of an organ resulting in rapid recovery the body function [Best Gift]: An ideal Valentine's Day, Mother's Day, Father's Day, Christmas, Birthday. The adjustable massage head allows your body to enjoy a multi-angle massage, activate your muscles and relieve muscle pain and tension