Specifications Brand Name HappymodelModel X12 ELRS ProItem Name X12 ELRS Pro AIO 5 IN 1 Flight controller built in 12A ESC and OPENVTXBetaflight firmware target betaflight 4 4 0 STM32F411VTX antenna U FLWeight 5 1gSize 30x30x8mm mso border left alt 0 5000pt solid windowtext border right 1 0000pt solid windowtext mso border right alt 0 5000pt solid windowtext border top 1 0000pt solid windowtext mso border top alt 0 5000pt solid windowtext border bottom 1 0000pt solid windowtext mso border bottom alt 0 5000pt solid windowtext Flight controllermso border left alt 0 5000pt solid windowtext border right 1 0000pt solid windowtext mso border right alt 0 5000pt solid windowtext border top 1 0000pt solid windowtext mso border top alt 0 5000pt solid windowtext border bottom 1 0000pt solid windowtext mso border bottom alt 0 5000pt solid windowtext X12 ELRS Pro v1 1 AIO 5 IN 1 Flight controller MCU STM32F411CEU6 100MHZ 512K FLASH ESP32 PICO D4Sensor ICM42688P SPI connection Mount hole size 25 5mm 25 5mmPower supply 1 2S battery input DC 2 9V 8 7V Built in 12A each Blheli S 4in1 ESCBuilt in Betaflight OSD SPI Control Built in 5 8G OpenVTX 0mw 400mw MSP control Built in UART ExpressLRS v3 0 0Built in voltage meter sensor voltage meter scale 110Built in current meter sensor current meter scale 470mso border left alt 0 5000pt solid windowtext border right 1 0000pt solid windowtext mso border right alt 0 5000pt solid windowtext border top none mso border top alt