Specification:

Product Name SpeedyBee F405 Mini BLS 35A 20×20 Stack Flight Controller SpeedyBee F405 Min ESC SpeedyBee BLS 35A Mini V2 4-in-1 ESC Bluetooth Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration.Please make sure the MSP switch on UART 4 is turned on and set to a baud rate of 115200, otherwise Bluetooth functionality will not be available. WiFi NOT Supported Wireless FC Firmware Flashing NOT Supported Wireless Blackbox Dwonload & Analysis NOT Supported Power Input 3-6S LiPo Mounting 20 x 20mm3.5mm hole sizeCompatible with M2 and M3screws/Silicone grommets Dimension 32mm(L) x 35mm(W) x 14.2mm(H) Weight 13.5g ProductName SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC Firmware BLHeli_S J-H-40 Continuous Current 35A * 4 Burst Current 45A(5seconds) ESC Protocol DSHOT300/600 Power Input 3-6S LiPo Power Output VBAT(Battery voltage, used to power the flight controller) Current Sensor Support (Scale=250 Offset=-500) Mounting 20x20mm3.5mm hole sizecompatible with M2 and M3screws/Silicone grommets. Dimension 35x35x5.5mm Weight 7.2g