Ahuja AWM-700UL2 Dual-Channel UHF Wireless Microphone System Suitable for PA Applications, Stage Performances, and Karaoke About this item Connectivity: Features both balanced (XLR) and unbalanced (6.3mm Jack) outputs. Power Source: The receiver operates on 12V DC via an AC adaptor, while transmitters use 2 × 1.5V AA pencil cells. Controls: Separate volume controls for each channel and power switch on the receiver.