The HCS-4325U/50 Dual 64-Channel Selector enables participants to listen to the speaker, provides a choice of up to 64 high-quality audio channels used for distribution of interpretation and floor channels. The unit has two built-in channel selectors with headphone connections with individual volume controls, allowing one unit to serve two delegates. Each of the channel selectors includes up and down channel select buttons, and a display showing the channel number and the language name, enabling rapid selection of the required language channel.