SmartLab Toys Smart Circuits Games & Gadgets Electronics Lab Build unlimited electronic games and gadgets Learn about electronic engineering using the modular system and microprocessor Includes 6 base boards, battery module, variable resistor module, microprocessor module, tricolor LED module, speaker module, photodiode module, tilt switch module, 6-LED array module, 2 push button modules, 31 jumper wires, 48-page book. Batteries not included. STEM Focus: Electronics For ages 8 and up