Function : TRPM8 (cold-sensing protein) which is presend
on the cell menbrane of certain nerve cells ,is activated by the
menthol sensor and produces a cool feeling ,The product uses the
motor to drive the wind blades containing menthol to blow the neck
and chest sensitive areas, thus making people feel cool,
battery capacity ; Li- battery / **0mA
charging time ;charging **3 hours can be use 6 hours .