the flipper with a hat is a pretty powerful mfker and can operate in the sub ghz ranges ... which can obviously b fun to fuk around with .... HackRF Portapack H2 Mayhem Firmware Flashed + HackRF One 1MHz to 6GHz SDR... the portapack h2 hat turns this into the next biggest best toolset for manipulating RF (flipper zero not pictured obviously)