This is a MLT-JR tracked robot platform and is equipped with 32mm motors, a motor controller, and Spektrum remote control. This robot is a prebuilt version of TP-220-001, and can handle up to 10lbs of additional payload/speeds up to 85 feet per minute.
The Sabertooth 2X25 is one of the most versatile, efficient and easy to use dual motor drivers on the market. It is suitable for medium powered robots - up to 30lbs in combat or 100lbs for general purpose robotics. Made by Dimension Engineering.