Check the listing for details. Gimini MDY-500 USB Media Player & Midi Controller DJ Deck. Condition: Used, Made in China. Listed at 125.00 USD. The Gimini MDY-500 USB Media Player & Midi Controller DJ Deck is a versatile audio interface device designed for DJs and music producers. With its USB connectivity, it allows users to easily connect and control their music production software or DJ decks. The Gemini brand ensures reliability and quality, making it a popular choice in the music industry for those looking to enhance their performances or studio sessions.