Internal motor spins a cylindrical plate with a weight (a screw) placed on one side creating an up down rapid vibrating movement. This vibration is then conveyed to 3 rods that smoothly propel the model forward in a sliding type movement.
The B3 Compact charger is a very simple to use charger for 7.4 2S and 11.1 3S battery packs. No need for additional power supplies or 12v batteries as this little unit has its own built in power supply that can be powered with 100-240v.
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 8lbs of additional payload/speeds up to 200 feet per minute.