PMTL39708 ProForm 680 MRT The ProForm 680 MRT offers customized, total-body training. With 6 Personal Trainer Workouts, you can select your fitness goal, press start and let the treadmill automatically adjust your speed and incline for maximum calorie burn. And, with 3 pairs of hand weights right at your fingertips, you can easily add intensity to any workout to help tone your upper body. The ProSoft Cushioning, Mach 2.5 HP Drive Motor and 010 MPH QuickSpeed Control round out this incredible treadmill to give you total-body comfort and amazing results.