ANLEON MTG-400 Wireless Microphone System includes a receiver, bodypack transmitter, lavalier microphone. Connect the microphone to the transmitter Microphone Input.. MTG-400 is a portable short-range wireless system used to transmit an audio message from a presenter to an audience. The presenter speaks into a radio microphone transmitter and the audience use lightweight receivers to hear the message. This system is ideal for small to large, indoor or outdoor applications for guides,interpreters or presenters to communicate effectively to a group of people,rejecting irritating surrounding noise. MTG-400 visitor guidance system supports the operation of up to 36 available transmission channels within the frequency range. Mastering even major events with simultaneous translation into many languages without interference or frequency chaos. Note: This system requires a human language interpreter, it does not translate automatically.Specifications RF Frequency Range : 570-590MHz Channel : 36 Headphone output : 3.5mm jack socket Transmitter operating time: up to 30 hours Receiver operating time: 12 hours Operating Range : 100m/ 330feet (environment dependent) RF Output Power : <10mW Signal-to-noise ratio : 70 db Frequency Response : 50Hz~20KHzTarget groups: Professional system rental companies Trade show organizers Company technicians Museums employees Interpreter associations Theaters/eventsApplications: Guided tours Press conferences Museum tours Trade fair events Interpreting Assisitve listeningMTG400 Transmitter 1pcs MTG400 Receiver 1pcs Earphone 1 pc Audio Connecting Cable 1 pc Lavalier Microphone 1pcs Headset Microphone 1pcs