The Dual Microphone System is the choice to select if you will be using Interact-AS in team teaching situations, or if the student needs to connect the audio to an ear-bud, personal streamer, or the transmitter of an FM/DM system. The Dual microphone kit includes two high-fidelity wireless microphones for use in classroom situations: (1) a behind-the-neck micro-element headset with a belt-worn transmitter for the main teacher/person talking, plus (2) a wireless handheld microphone with a built-in transmitter for a second teacher/aide/or use by students during group discussions. Both microphones can be simultaneously connected to your Interact-AS system. Additional microphones and microphone headsets are available below. The dual-channel receiver comes with a built-in digitizer and analog output ports. The system also includes four complete sets of rechargeable batteries; the recharging system for both microphones; a carrying case; and all required cables and connectors. Additional microphones and microphone headsets are available below.