Takstar SC-M1 Portable Sound Card has been tailored for network Karaoke/live broadcast, suitable for smartphone/tablet PC/PC. It has a built-in DSP chip with 9 processing effects, one button to switch, easy operation. It has 9 effects to be selected by camboy/camgirl for a more interesting live broadcast; Three of the nine can be replaced. It supports one button to turn on the monitoring function; you can listen to what you are singing. It features Intelligent noise reduction to automatically shield the ambient noise picked up by the microphone. It has one button to turn on the background ducking function. It has independent control of microphone volume, monitoring volume or recording volume, flexible operation. Supports multiple microphone connectors, compatible with condenser microphone, dynamic microphone, headphone microphone. Accompaniment connector to link with external audio source equipment for playing accompaniment during a live broadcast. It is powered by a built-in Li-ion battery for more than 7h operation and it supports charging during operation. It has no warranty.