First of all, let's start with its function. Built-in five fixed ten-position pulse massage modes (automatic mode-acupuncture mode-shiatsu mode-kneading mode-beating mode), and the intensity of 10 is adjustable. Hot compress function key, next to music mode key. In the power-on state, short press can turn on/off the hot compress function. The principle of this massage method is to imitate manual massage, which is definitely effective and the effect varies from person to person.

The picture above shows the mechanic MN500 music neck protector.