Product Name
SpeedyBee F405 Mini BLS 35A 20x20 Stack
Flight Controller
SpeedyBee F405 Mini
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 20mm 3.5mm hole size，Compatible with M2 and M3 screws/Silicone grommets 
Dimension
32mm(L) x 35mm(W) x 14.2mm(H)
Weight
13.5g