The KPL Keypad controls a CAS44 or CAA66 multiroom system. Its five-character display aids in source selection, offering over 100 source labels to name your sources. The display also indicates volume and system status. Easily adjust the bass, treble, balance, loudness and volume directly from the keypad to personalize the sound playback in any zone. For added convenience, you can turn the whole system off at any keypad.