Hitec 130245 Aggressor SRX Pro Tx w/2 Rx 3Ch 2.4G Hitec Aggressor SRX Pro 3-Channel 2.4GHz DSSS Surface Radio System with Atom Micro 3 Receiver (Servos Not Included).Features:2.4GHz Direct Sequence Spread Spectrum (DSSS) and FM (PPM) ready 7msec high response mode Ten model memory, four character naming Brake ATL switch and brake level travel limiter Dual mode 3rd channel (shift or linear) Steering wheel tension adjust