What are some things that I can use the hackrf for?

[bimaga4123]

I recently aquired a portapack with a quite a nice design I would say. To be exact this one https://www.sdrstore.eu/software-defined-radio/instruments/hackrf/assembled-hackrf-portapack-h2-hackrf-one-1mhz-to-6ghz-sdr-with-mayhem-1-8-0-en/ What are some cool things to do with it? Right now the best I did was play some sounds on a frequency that some radio channels are but it only works locally about 5m.