The Makeblock 2.4G Wireless Serial was designed for Makeblock mBots to be
used in classroom or workshop allowing people use wireless communication
simultaneously. It uses the same the technology as wireless mouse. With the
feature of no pairing needed and no drivers needed, there is no signal
interference when many modules work simultaneously. With two parts included: a
dongle to plug on your computer; a module to plug on the mCore, you can easily
establish a wireless connection between the software mBlock and mBot.