... Runs quietly 2.Physical therapy for arms and legs 3. Useful training for paralysis muscle 4. Aerobic exercise ... Mini Auto Exercise Bike1. With 5 speeds:30rp/m ... ,70rp/m,can be adjusted accordingly2. Time:5 different choices for time-setting ,3 min,6min,9min,12min ... out bibi signal,Press ON?OFF button for restarting.If the alarm is not released ...