Specification Manual Brand SpeedyBeeModel Flex25 Analog Item Name 78mm Wheelbase F7 4S 2 5 Inch FPV Racing DroneWheelbase 78mmDimension 136x136x35mm LxWxH Weight 140g without Battery SpeedyBee F745 35A AIO Gyro MPU6000OSD AT7456ESupport 3 6S LipoMounting Hole 25 5x25 5mmCon Current 35AFirmware BLHeli SFC Wireless firmware flashing full Betaflight configurationESC Wireless firmware flashing full BLHeli S configurationChange motor directions wirelessly 4 UARTS Barometer I2C pads 8MB Blackbox flashSpeedyBee 1404 4500KV MotorKV 4500KVInput Voltage 3 4SShaft Diameter 1 5mmMotor Dimension 19 3x15 6mm DiaxLen Mounting Hole M2x9 M2x5Weight 9 6gIdle Current 0 5A 8VMax Power 250W 6SMax Current 14 8AGemfan D63 3 2 5 Inch PropellerDiameter 63mmPitch 3 inInner shaft diameter 1 5mmHub Thickness 4 9 mmWeight 1 36g eachSpeedyBee TX800 VTXFrequency 5 8GHz 48CH Output Power PIT 25 200 400 800mW Working Current 250 750mA 5VVoltage out max 250mA 5VVoltage In 3 7 5 5VVideo input impedance 75 Ohm Antenna Connector MMCXWeight 5 6g without antennaPCB Size 28x28mmMounting Hole 20x20mmVTX AntennaModel Speedy Bee 5 8 GHz Antenna V2Frequency range 5 5 6 0 GHz Gain 2 8dBiPolarization RHCPRunCam Phoenix2 Nano FPV CameraImage Sensor 1 2 CMOS Sensor Horizontal Resolution 1000TVLLens 2 1mm M8 FOV155 4 3Screen Format 4 3 16 9 switchableSignal System PAL NTSC Switchable Power DC 5 36V