Audio output:Balanced and Unbalanced. Power requirement:AC 16V, 2000mA.The item "8 Channel Pro Audio Wireless Microphone System UHF 8 Handheld Metal Dynamic Mic" is in sale since Friday, August 14, 2020. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems". The seller is "kyyi4583" and is located in Walton, Kentucky. This item can be shipped to United States.