Stock transmitter
From RC Helicopter Wiki
A basic transmitter supplied with a ready to fly model.
A stock transmitter usually has very limited features. Typically it will have fixed pitch and throttle curves. Transmitters for collective pitch helicopters may have an idle up switch, and maybe a hover throttle and collective pitch trim control. Control sensitivity is not adjustable. Transmitters for CCPM helicopters can sometimes have the mixing disabled, for use with simulators.
A notable exception to this is the E-flite Blade 400 which comes with the Spektrum DX6i computer transmitter as standard.