The LS-07 15-Person Tour Group System is a great for organizations that wish to ensure their visitors understand every word. This system is ideal for indoor or outdoor tours of any venue and language interpretation as well. The 15-Person System includes a Portable Transmitter and microphone, display receivers with ear speakers, batteries and a carrying case. Also be sure to consider whether a hand held or noise canceling microphone might be appropriate for your application. You can add any number of receivers to a single transmitter if you need to accommodate more guests. This system is a good size for rentals. Use this system for auditory assistance and language interpretation on tours or in other venues. Great for manufacturers, museums, governments, houses of worship, tour companies, zoos, and board rooms.