Features Phone holder on frame and console tray Water bottle holder on the frame Built-in transport wheels for transport The Gym Gear Curve Plus 2.0 Treadmill is a motorless Curved Treadmill. Using no electricity but instead running on the energy produced by the runner’s own movement, beginners and competitors can run at the desired speed and change the output at will with no maximum or minimum speed setting. The Curve 2.0 Plus allows users to adjust the resistance from Level 1 up to Level 8 for added resistance. Built with HIIT in mind, the Curve 2.0 Plus Treadmill’s console keeps you informed on your time, resistance level, calories burned, distance, speed, watts and pace, and more, with a number of heart rate and interval programs available. The display is compatible with a mobile fitness app which can be downloaded to your smartphone.