COBI Electronic Bulldozer with Bluetooth Set This new Bulldozer from COBI is an electronic remote controlled working machine that you can now build from blocks Set consists of 480 blocks, 2 figures and all the needed electronic components Built-in Bluetooth and infrared allows you to control the Bulldozer freely, not only by the included remote control, but also by a Smartphone or even a tablet COBI Blocks are 100% compatible with all the leading brands of building blocks This item is a great addition to the extended COBI collection