1.The finger of comfort press to press position and switch to turn operation.
2.The function identify.
3.The auto connect ground.
4.Defend the finger get an electric shock a again.
5.Plate chrome metals a head and install a base
6.The quakeproof bolt carry son.
7.Hard,credibility,as long as 3,000,000 time machine life span.
8.As long as 50,000 hours of the service life of the LED indicator.
9.Touch some basecassette install
10The front-panel surface is minimum.