Roland CM-110 - Black 2.1-channel system with high-quality sound and full frequency response Custom-made speakers with protection circuit to handle input with wide dynamic range or continuous high levels (synthesizers, V-Drums, etc.) Flexible connectivity to handle electronic musical instruments such as V-Drums, keyboards, and stage pianos, as well as media-production gear, audio players, and home entertainment systems 3-channel multimedia inputs, including digital, stereo miniature phone type, and RCA phono type External mixer can be connected to the balanced input (XLR) for input expansion