The HCS-4330/50 Series is a modular tabletop discussion unit with the option to add electronic voting and language channel selector. The base model consists of a detachable gooseneck microphone, built-in speaker and microphone activation button. The base model consists of a detachable gooseneck microphone, a built-in speaker and microphone activation button with speech timer and request to speak LED. A headphone jack and independent volume control are on all HCS-4330/50 models.