4-kanals trådlöst mikrofonsystem, Tonor UHF metall trådlös mikrofonuppsättning karaoke maskin, perfekt för fest, hem KTV, kyrka, bröllop, scenframträdande, DJ, utomhusevenemang, 200 fot (TW-820 Plus) : Amazon.se: Musikinstrument
Ultrastar Deluxe - Download
My Little Karaoke - Ultra-Quick setup guide
Pair Of SingStar Wired Microphones (PS2/PS3) : Video Games - Amazon.com
UltraStar Deluxe : Free Karaoke Game for Windows, Linux and Mac - TechnoGadge
UltraStar: Setting up the Microphones | The Bricky Blog
Best FREE singing party game! Custom songs and microphone app. Enjoy UltraStar Play on PC and mobile - YouTube
An Ultrastar port should be interesting for add in retropie, with usb mic support in order you can do a portable karaoke for eady play in any TV or bars, pubs, etc :
Androidove aplikacije programera UltraStar Play na usluzi Google Play
Rewelacyjny zestaw do karaoke 4 x mikrofon DM-202 - Sklep, Opinie, Cena w Allegro.pl
USDX/config.ini at master · UltraStar-Deluxe/USDX · GitHub