The sturdy, reliable SKM 2020-D-US handheld transmitter may be the easiest way to address your audience. Should a participant have a question, simply hand the microphone to them and all participants will hear clearly! The easy-to-operate, rugged microphone effectively reduces unwanted background noise to ensure clear, reliable communication to all listeners. A convenient back lit display allows the user to view the active channel, as well as battery status. The included BA 2015 G2 rechargeable battery offers up to 8 hours of use and charges in about 3.5 hours with the EZL 2020-20L charger. The Tour guide 2020 series is the first digital RF wireless tour guide system in the ISM band, offering excellent audio quality and extremely reliable, interference-free communication. Designed for easy set-up and operation, this system offers a high degree of flexibility with six available audio channels, making it an ideal choice for almost any guided tour application! Other system components include a small SK 2020-D bodypack transmitter, with your choice of microphone (ordered separately), lightweight HDE 2020-D stethoset receivers, and a portable EZL 2020-20L convenient carrying case with charger.