SEGA MegaDrive / Genesis and Saturn 2.4GHz Wireless Controller
Retro-Bit did a great job with the officially from SEGA licensed wired controllers: They feel just like the original and play perfectly.
But these are even better: Now they are available as 2.4GHz wireless controllers!
As you can see, included in the box are two dongles:
One with a USB connector and one with a Classic Controller connector.
The USB one can be plugged into any PC, the PS3, the Nintendo Switch or the recently released MegaDrive Mini.
The classic controller dongle can be plugged into the original SegaMegaDrive or Saturn (depending on which controller you bought).
So you can use it to play wirelessly on the original system as well!
And you don't need to have a PC with bluetooth, everything you need is included in the box.
But if you rather would like to get a Bluetooth version: This one will be released in December.
The 2.4GHz variant is already available.