The Nanoloop Mono packs in three analog filters and a noise generator on its hybrid sound chip. There's also a step sequencer with per step control of the parameters and eight memory banks than can each hold 15 patterns per channel. While the card works best with the OG Game Boy, it will also provide some noise when used with the Game Boy Pocket and Game Boy Color. However, Nanoloop says sound quality suffers with those gadgets. It doesn't work at all with the Game Boy Advance, but the company makes another card for that handheld: the Nanoloop 2.0. While you decide whether or not to turn your collector's item into a music making machine, the video below shows the Mono in action.