Amazon.com: SpeedyBee F7 Mini Flight Controller Stack Board 3-6S 20x20mm with 35A BLHeli_S 4 in 1 ESC Support Wireless Tuning for 2-4 Inch FPV Drone : Electronics
Amazon.com: T-Motor F7 Pro Full Function 30x30 Flight Controller, speedybee with WiFi & Bluetooth, Gift for UAV Enthusiasts, Quick Firmware Upgrade, Supports Analog VTX Direct Plug to DJI air Unit : Toys
Amazon.com: SpeedyBee V3 F7 Flight Controller Stack: 30x30 Drone FC Stack with 4in1 50A ESC BL32, Wireless Betaflight Configuration, Blackbox,Solder-Free Plugs,WiFi,Bluetooth for 3-6S 4" 5" FPV Drone Cinelifter : Toys & Games