The official Sony DualShock 4 USB wireless adapter is the simplest Bluetooth option. You may have to hunt for it or spend a little more than you would on a standard Bluetooth dongle, but it's worth it ...
The PlayStation 3's DualShock 3 controller wasn't originally designed with the PC in mind. But who cares: We're gonna do it anyway. The DualShock 3 isn't quite as easy to use on PC as a modern Xbox ...