Functions:
1) Designed by human body engineering;
2) Two electronic pole patch built in;
3)Massaging many part of the human body;
Efficacy:
1)Renew to the natural bend constitute, release and eliminate bone hyperplasia;
2)Eliminate edema, inflammation and improve shortage of head blood supplying;
3)Prevent the pain from nerve pressure;
4)improve deep sleep;
5)Regulate enginery of neck and relative organize