Makeblock mBot Add-on Pack - Interactive Light&Sound

mBot Add-on Pack Interactive Light & Sound Features a 3-in-1 add-on pack Includes light and sound sensor and RGB LED Allows you to build 3 different models mBot not included The mBot Add-on Pack Interactive Light & Sound is a 3-in-1 pack based on mBot. You can construct "lighting chasing robot", "Scorpion robot" and "Intelligent voice-activated desk light " with mBot and the components in this pack. Each one has infinite possibility.