Uni-directional microphone pattern, wired dynamci microphone. Powered by it's own jack and no battery required for operation. Handheld with on / off switch on the microphone for convenience. 4m Long cable is enough to move unimpeded. 1/4" pug for different devices, such as portable speaker, DVD, Audio Mixer, Audio Amplier and so on. Perfect for singing,karaokehine,live broadcast,conference,church,etc.