This is the 2218X Micro TQ 2.4GHz 5-Channel Receiver from Traxxas. FEATURES: 2.4GHz technology Traxxas Link automatic model recognition software allow previously bound receiver to be recognized by transmitter and recalls all settings when specific receiver is switched on INCLUDES: One Micro TQ 2.4GHz Receiver with Instruction Sheet REQUIRES: Installation in vehicle SPECS: Length: 1.5" (37.5") Width: 1" (25.5mm) Height: 0.65" (16.5mm) cnh 2/23/10 ir/jxs updt jxs 03/04/11