Something to be aware when connecting to a camera is to check your audio levels. I have seen reviews stating a buzz when there is no talking. I saw this as well until i went into the camera and saw it was clipping, set the levels to manual and reduced significantly. Very good / clean audio, walked around the house upstairs and down.
I bought this mic to start recording videos on my Nikon and it has been very good to me. I have been using it for about a week now and have not needed to charge it. The sound quality is also very very good. 101% Recommend this microphone.