1 - To turn Muse on, press and hold the power button for about 3 seconds.
2 - After display lights up, press the power button momentarily again.
3 - Use up and down arrows to adjust the speed you are comfortable with.
4 - Needle protrusion is adjusted on a handpiece (long, brief).
5 - Please make sure handpiece always have 2 red rubber rings on the cartridge end before putting a cartridge on a handpiece. Using handpiece with 1 rubber ring or no rings at all may damage the machine and a handpiece.