Wireless Remote Starter: Conveniently start and stop the Yamaha EF4500iSE or EF6300iSDE generator by remote control.Adds convenience of starting and stopping the generator from  up to 66 feet away. Quick and easy, plug-and-play installation No special tools or wire splicing required. Meets FCC requirements. 66' maximum range.
Parallel Power Cables: Safe and easy way to combine the power of two Yamaha EF2000iS inverter generators. Provides up to 3750W of combined power to the 30A RV outlet.
RV Adapter Kit: Has a 30A receptacle for RV use. Required if connecting the Twin Tech Cable to RV. For use with EF2000iS, EF2000iSv2, EF2000iSH.