This remote control can be paired with treadmill SP37514, SP37513, SP37522, SP37747US.With advanced infrared technology, this remote control can precisely control your treadmill through 360-degree effective angle and the distance up to 33 ft. It controls the speed and start/ stop. Light weight and small shape make it easy for you to run with it in your hand. Each button can withstand 80,000-100,000 presses and the material is sturdy. With this replacement remote control, you don't have to worry about damaging or losing the original one. | Costway | | Remote Control for Specific Superfit Treadmill Start/Stop and Speed Adjustment | Black | Best Buy