Features: Tailored for network Karaoke and live broadcast, suitable for smartphone, tablet PC and computer. Built-in premium DSP chip with 9 processing effects, one button to switch, easy operation. Intelligent noise reduction to automatically shield the ambient noise picked up by microphone. Independent control of microphone volume, monitoring volume or recording volume, flexible in operation. Built-in Li-ion battery for more than 7h operation; charging during operation supported.