BOYA BY-GM18CU is a cardioid gooseneck condensermicrophone.It's an ideal choice for lectures, conferences,and meetings. With the excellent cardioid polar pattern, theBY-GM18CU can clearly capture the voice in front of themic, designed to provide clear and intelligible speech reproduction for lectures, video conferences, meetings, andmore. The BY-GM18CU's shaft features upper and lower gooseneck sections that enable you to precisely positionthe capsule in front of the speaker for optimal sound.Talk/Mute status is clearly indicated by the LED indicator on themic base and capsule.Featuring capabilities of mute andreal-time audio monitoring, the BY-GM18CU can plug andplay, not requiring batteries.