So the tumor is/was for the tarzan yell, its broken so now you use it by holding the mic key and turning the cb on. It is turned up to somthing like 12 watts so i can talk about 20 miles with people if i want, it has the squech, and the reverb in 3 modes (low, high, off). SWR meter built in, The dynamike is modded for somthing i cant remember and neither could my step-dad so ill have to play with that.