Super 251 USB Power Slot Car Racing Set
- Digital proportional speed controller enables the user to control the speed of the racing cars at will while most other slot cars only have 2 or 4 fixed speeds..
- Usb power system, The first and innovative application in slot car toys industry. Players only need to plug in their own power bank or smart-phone USB power adapter to play..
- High scale cars with bright LED headlights and strong magnetic base, cars run smoothly and quietly because of high precision gear design and installation..
- Mechanical lap counter & powerbase integrated as combo track..
- Mega tracks, wider and longer tracks compare to traditional 1/43 scale slot racing tracks. Distance between cars are wider..