ROWA External mic for Dslr
5X(Notice: The microphone is very sensitive, do not drop, knock, or strong shock. If the microphone is placed next to the speaker, it may produce whistlers if happened, is about to place the microphone is far away from the speaker, or reduce the volume of the speaker. The tape change pick up mode switch settings, can produce noise. The battery indicator on the microphone when opening the lights up and immediately went out to save battery power and prevent stray light effects shooting video. So please check the switch to confirm that the switch has been closed and the microphone is used when you do not use or stop using it.