Review on High-Sensitivity CCTV Surveillance Microphone 2-Pack for Outdoor Security, DVR Recording, RCA Connectivity, Amplified Pickup, with External Camera Sound by Ricardo Anderson

I bought it 6 months ago. I immediately hooked one up and it worked great with a little gain control. I just hooked up a second one half a year later and it wasn't working properly. I contacted the seller and he responded immediately. Send a replacement microphone. That's excellent customer service. The working microphone works perfectly and picks up voices very well and understands them easily at a distance of about 30 meters. It picks up a lot of background noise, lawnmowers, birds, cars going by, etc., but it's not bad enough to worry about. I can still hear the voice perfectly where I needed a microphone. No buzz, no hiss. Good mic, good company to work with.