If you want to record your FPV flight from your camera without all the signal breakup, then you might want to check out the Speedybee DVR VTX! It’s basically a 600mW video transmitter with a built-in DVR (digital video recorder).
The Speedybee TX500 is a video transmitter you can mount in a 20x20mm FC stack. It also has built-in mic, VTX control and some other features that you might want to consider.
There are times I wanted to configure my quadcopter using smartphone app, but I couldn’t install a bluetooth module because there isn’t a spare UART. Check out the Speedybee USB to Bluetooth adapter, an alternative to Bluetooth modules.
The Eachine SpeedyBee SEC FPV camera is a new budget option for racing drones. While popular light weight, micro size FPV cameras such as the Runcam Micro Swift 2 and Foxeer Micro Arrow can cost between $30 to $35, the Eachine Speedy Bee might be a cheaper alternative at the $20 price range.