1. With 4 speed: 30rpm, 40rpm, 50rpm, 60rpm can be adjusted freely 2. Time: 5 different choice for time setting, 3min, 6min, 9min, 12min, 15min 3. Rotate & Counter-Rotate: When rotate in a contrary way, it can be Adjusted, in a mean while, it will pause 2 seconds and exist a process: Speed down and speed up. 4. Display for accumulative rotate time: It can display the number for rotate Time. 5. Display for counter down: Display the number for fixed time. 6. Auto-rotate function: When in a normal status, press this button then let It start to auto-rotate 7. Annunciator function: When the motor auto-stop about 6 seconds, the Buzzer begin to give an alarm and bibi sound, press ON/OFF button for Restarting if not released the annunciator in one minute, it will auto-stop. producing area:China payment:L/C, T/T