1、Specially designed for small RC drone, suitable for frame size less than 280mm, especially for frame size less than 130mm. 2、Designed for quadcopter models, built-in LC filter and support BF firmware. 3、Using STM32F303 singlechip, MPU6000 sensor and SPI interface connection, providing faster computing speed. 4、Support 2-4s power input and built-in 5V 1A outputs BEC. 5、Support for SBUS/PPM/DSMX and other mainstream receivers in the market. This flight control is used to assemble small quadcopter about 80-90, 1104 7500KV motor, 2S 400-500mah battery. Use 3 - or 4-blade 2-inch blades. And the receiver is recommended to use a micro receiver. To k eep it light and simple! Image transmission select 25-200 adjustable integrated figure transmission, but the power of image transmission must be connected to the power supply. Features: 1. Specially designed for small RC drone, suitable for frame size less than 280mm, especially for frame size less than 130mm. 2. Designed for quadcopter models, built-in LC filter and support BF firmware. 3. Using STM32F303 singlechip, MPU6000 sensor and SPI interface connection, providing faster computing speed. 4. Support 2-4s power input and built-in 5V 1A outputs BEC. 5. Support for SBUS/PPM/DSMX and other mainstream receivers in the market. 6. Buzzer/programming LED/voltage monitoring /BLHELI electrical modulation programming. Specification: Condition: 100% Brand New Item Type: RC Accessory Size: Approx. 3 * 2.5cm/1.2 * 1in Weight: Approx. 4g Package list: 1 * RC Flight Controller