Full interface design does not require welding. Except for the power cord and BATLED line pad, all other devices are connected using interfaces Supports image transmission switch function. The image transmission can be turned off by the switch during parameter adjustment to avoid automatic shutdown protection due to high temperature of the image transmission More reasonable electrical layout design. Special-shaped size, maximize the use of PCB space, make the layout design of the ESC and flight control more reasonable Onboard buzzer. No external buzzer is required. Installation is more convenient Built-in power on/off circuit. Cooperate with the power button board to control the power on/off function. Flight control parameters Master control STM32F411 Gyroscope -42688 Barometer None OSD: Only supports OSD transmitted by HD image transmission UART Black box 16MB Input voltage: 2-3S supports LIHV battery LED light strip: Support Flight control firmware Defender_F411 ESC parameters Master control: BB21 Driver: FD6288 Input voltage: 2-3S supports LIHV battery Output current: 20A continuous ESC firmware Q-H-50 - , 0.16 Current sensor: Proportional 200 (1/10mV/A) ESC BEC: None Bidirectional DSHOT: Support Drive signal support: DShot150/300/600, MultiShot, OneShot drive signal Material: PCB colour: black Package Contents: 1 x F411 AIO 1 set x installation accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.