1¡¢microphone: high sensitivity, heart-link shape pointing 2¡¢goose-neck like type microphone can be disassemble, with red-ring indicate light 3¡¢microphone light instruction: turn on the microphone display in red light instruction when display in green indicated the delegate¡¯s speech is limited 4¡¢microphone switch: useful for turning on and turning off the microphone 5, forbid key: can forbid or cancel the speaking delegate (rx-c2700 has this function) 6, built-in loudspeaker Carton
