Features: item type:Neck brace material:Cotton wool size:S,M,L,XS,10cm * 10cm * 5cm color: white Application scenario:Health massage Applicable position:neck Features: 1. This electric neck massager uses air pressure massage, constant temperature hot compress and double traction fixation to stretch the cervical spine, correct the curvature of the cervical spine, and protect the health of the cervical spine. 2.       Air pressure massage: three massage modes (relaxation mode, stretching mode, fixed mode), deeply relax your cervical spine, relieve cervical spine pain, and reduce fatigue. 3.       Hot compress: Carbon fiber far-infrared heating, three-level temperature control (45±3℃, 50±3℃, 55±3℃), which can effectively promote blood circulation and relax muscles. 4.       Double traction fixation: It adopts a four-sided three-dimensional wrapping design to fix and support the cervical spine, reduce the pressure on the cervical spine, and improve cervical spine problems.