A compact 318 MHz OOK RF transmitter built with an Adafruit Feather ESP32 V2 and CC1101 transceiver. Developed with the Arduino framework, the firmware wakes the device upon button input, transmits a stored signal, displays battery status through the onboard NeoPixel, and returns the system to deep sleep for reduced power consumption. Compatibility with the Flipper Zero raw recording format enables signal storage and transmission.