The AP40 is a limited Special Edition from 8bitdo. Technically it's identical with the NES30pro / FC30Pro, but the design has been modified to fit the Apple Retro Logo.
The packaging looks like an original floppy drive. Once opened, you can even see the inside of the drive.
A tiny metal Apple computer can be used as holder for either the controller or a smartphone while playing.
The USB port has a small rubber protector that looks like an Apple stalk.
And as it's limited, a numbered certificate is included.
Works with PCs, Android and iOS (incl. Touch-Simulation) and basically any other device, that works with standard USB- and Bluetooth-Controllers as well as the Nintendo Switch.
Aditionally you can use it lag-free with an original NES, SNES and NES Mini Classic Console if you get the appropriate 8bitdo RetroReceiver.
The firmware can be updated by the user!