The DWS INT 4 is a completely portable, wireless system for language interpretation. Ideal when security, sound quality and flexibility are critical. Designed for small - to medium-size conferences, meetings or other events where one language is shared by two interpreters. System can serve up to 25 listeners. Additional DLT 100s can be purchased separately to accommodate up to 14 additional languages. Additional DLR 50s can be purchased separately to accommodate additional listeners. Can serve unlimited number of listeners within recommended range.