The "Admiral" is a pretty good Nintendo64 Bluetooth controller. It's compatible with most bluetooth devices like a PC, MacOS or Android.
Thanks to the included receiver for the original N64, you can also use it on an original N64 console!
The receiver has a memory card slot built-in, so using memory cards is possible as well.
The built-in battery offers a playtime of about 6 hours.
It's a perfect multipurpose N64 controller - regardless whether you want to use it with an emulator or the original console.