Tactic TTX300 Three-Channel Pistol-Grip Radio and TR325 Three-Channel Receiver with 2.4GHz Secure Link Technology Control your favorite model cars, trucks, crawlers and boats with this affordable, feature-packed pistol-grip radio. Add or customize functions with the user-programmable third channel, or use it as a 2-, 3- or 4-position switch or proportional control. The TTX300 can be used with any receiver featuring the SLT (Secure Link Technology) protocol. Compatible with the Tactic TSX35 Standard Sport Servo (TACM0235) and the Tactic TSX45 Standard High-Torque Metal Gear Servo (TACM0245). Includes TTX300 radio and TR325 3-channel 2.4GHz micro receiver with internal antenna and Secure Link Technology.