Catchbox Plus and Legacy Plus are complete wireless microphone systems. You can plug them to your audio system of choice (a regular speaker, mixer board, amplifier) or to your computer - once that’s done, you’re ready to use your Catchbox!
The Catchbox microphone system does not contain a loudspeaker. You can use a loudspeaker/audio system you own or buy it to use with your Catchbox.
Catchbox Mod, on the other hand, is only the microphone module. Apart from your audio system, you will additionally need a 3rd party beltpack transmitter. This transmitter is inserted into the Catchbox Mod microphone capsule.
Check the related articles to find out more about getting everything you need for using your Catchbox!