Kyosho 82011 is a 2.4GHz transmitter for high-performance mini R/C cars. It has 27 control functions that can be set with precision for optimal racing performance. The user interface enables precision settings for each function. It finds open frequencies and up to 40 2.4GHz Mini-Z Series models can be run simultaneously. The transmitter is powered by 8 AA-sized Alkaline Batteries or UM-3 sized NiMH (Nickel-Metal Hydride) Batteries.