Traxxas 6516 TQ 2.4 GHz 2-Channel Transmitter FEATURES: Replacement transmitter for several Traxxas vehicles that use the TQ 2.4GHz radio system Steering trim adjustment knob INCLUDES: Traxxas 2-Channel TQ 2.4GHz Transmitter REQUIRES: Four AA batteries, DTXP4704 jxs 07/22/13 ir/jxs