- Improved Infra-red Technology ( IR2TM ) with supreme reception quality - High Power Infrared MIC - Multi Infrared Emitters to ensure high Receivability - Ultra High Peromance Sensor Offers 180° Receiving Angle - Free From Radio-wave Interterence - Low Battery Indicator - Maximum 4 Sensors can be connected to the Receiver - High Quality of Unidirectional Dynamic Microphone Head is used for supreme sound quality - 30 meter induction Distance - Input Voltage:220V/AC(for both Receiver and Charger)