What is it?A wireless microphone system – the latest addition to AKG’s WMS40 Mini series featuring a dual-channel receiver. DetailsSaid to offer high-definition audio performance, the WMS40 Mini2 dual wireless system includes an efficient body pack and cardioid mic transmitters. It is available in three versions – Vocal, Instrumental and Mix sets. The Vocal set features two HT40 Mini dynamic cardioid microphones and an SR40 Mini2 Dual receiver. The Instrumental set includes two PT40 Mini body packs (said to be the smallest transmitters their class) an SR40 Mini2 Dual receiver and guitar cable, while the Mix set combines an HT40 Mini, a PT40 Mini and the SR40 Mini2 Dual. Featuring swivelling antennae, easy-to-read LED metering, volume control and power switch on the front of the receiver, the WMS40 Mini2 system is said offer ‘plug and play’ connection and calibration. And another thing…The SR40 receiver is capable of 30 hours continuous operation on one AA battery.