Happymodel Pancake 2-6S F4 12A AIO Whoop Flight Controller w/ ELRS RX & OpenVTXIntroducing the Happymodel Pancake AIO, a one of a kind flight controller designed in collaboration with the ExpressLRS team! This tiny powerhouse packs a big punch with its onboard 2. 4GHz ELRS SPI receiver and 5. 8GHz OPENVTX. Get ready to soar to new heights with these three key highlights: All in One Convenience: Say goodbye to separate components and hello to the Happymodel Pancake AIO, an all in one solution to your flight controller needs. Cost