AKG WMS 40 Mini Dual Vocal Set ISM, 2 channel UHF Wireless-System with dynamic handheld transmitter, non Diversity receiver with adjustable balanced jack output, HDAP Technoloiy(High Definition Audio Performance), up to 30 hours with one 1x AA Battery, LED status control on transmitter, Low Battery control on transmitter, On/Off/Mute switch on transmitter, three status LEDs on receiver, frequency ISM 2 864,375 MHz and ISM 3 864,850 MHz.
en 
