VocoPro JAMCUBE-COVER Home Karaoke System he JamCube is a lightweight, full-featured, mini PA system, and with its adjustable shoulder strap, super easy to transport- The system is built around a four-channel mixer that can accommodate both microphones & instruments- Its built-in media player will play just about every kind of disc out there, including CD, MP3, DVD, CDG, and Photo-CD