1) Runs quietly 2) Safety alarms and motor shuts off if cycle is not operated properly 3) 4-speed: 30rpm, 40rpm, 50rpm, 60rpm and can be adjusted freely 4)3.Rotate & Counter-Rotate: when rotateing in a contrary way, it could be adjust 5).Meanwhile, it will has 2 seconds pause during the change 6).With AUTO program setting 7).Select the MODE according to the meter of calorie or rotating. 8).With safety equiement, will provide the alarm and bibi sounds 9).When the machines to be Auto-Stop for over 6 seconds, then will be shut off automatic. 10) We own the original tooling in China.