If you'd like a nice big proper microphone, you can connect it to the system via a mixer (using the RCA/phono cables we supply with the Donkey, Hawk and Falcon transmitters).
If you don't want to use a mixer, we have some other options. With the parakeet, we do provide a Britney Style 3.5mm Microphone, which sits over the ears and is nice and lightweight. Alternatively, we do sell (not available for hire) a nude-colour 3.5mm Chord Microphone (FNM-35) if you're looking for something a bit more discreet.