... there are four different modes-p0,p1,p2 and p3.p0 1. treadmill2. motorized treadmill3. foldable treadmillthere are ... four different modes-p0,p1,p2 and p3.p0MODEL:HK-8100 unfolding size: 1100*520*1000mm power ... are four different modes-p0,p1,p2 and p3.p0 is the manual mode and adjusting the ... treadmill speed is optional .p1,p2 and p3 are the automatic modes.p1 is the walk program ...