This is the Traxxas Link 2.4GHz High Output 2-Channel Transmitter. FEATURES: DSSS (Direct Sequence Spread-Spectrum) 2.4GHz technology Traxxas Link automatic model recognition software stores up to 20 previously bound receivers and recalls all settings when specific receiver is switched on-no juggling of transmitters or scrolling through menus searching for model names Multi-function knob can be programmed to control steering exponential steering and braking dual rate and throttle trim Two button "menu" and "set" interface Steering and throttle end point adjustment, servo reversing and sub trim adjustment 13ms frame rate and near zero latency for instant steering and throttle response and precise, smooth control Thirty day limited warranty through manufacturer beginning at date of purchase INCLUDES: Traxxas Link 2.4GHz High Output 2-Channel Transmitter REQUIRES: AA Batteries: Four Receiver: Traxxas Link 2.4GHz jxs 02/15/10 ir/jxs