CAUTIONS D 。 This product is not allowed to people with伽llowing conditi ns: Postural verti尉,dizziness, disorientation 回 Using Attention ① Please follow the manual, stop using piilow immediately if you feel uncomfortable during Spinal marrow narrow use; Osteochondrosis ② Myod严tonia during use; With intracranial electrodes ③ Serious OSAS group Spinal syndrome pac阳萨, ⑨ Do not disassemble the pillow by yourself at any case, avoid to affect the use and cause click Cervical facetjoint syndrome d