49MHz Replacement Remote Control Transmitter Compatible ONLY with Haktoys BLUE HAK104 RC Stunt Master 49 Mhz Replacement Controller for BLUE Haktoys HAK104 RC Stunt Master 2 Channels: Forward/Reverse and Left/Right. Recommended for low-carpet or tile floors Only compatible with RED HAK104. Perfect to keep around as a spare! Wide-range frequency for better control and play times Requires by 3 x AA 1.5V batteries (NOT included)