The HCS-5391DDS features a 160×80 OLED display, clearly showing channel numbers, language names, etc. It boasts dual-user functionality, including dual microphone switches and user identification, allowing precise automatic camera tracking of speakers on both sides. Equipped with dual interpretation channel selectors (1+7 channels), it works seamlessly with the HCS-5100 Plus series, enabling users to listen to 8 channels of simultaneous interpretation—ideal for multilingual international conferences. It supports a selection of stem microphones (sold separately) to meet the diverse needs.