Review on 🎤 CCTV Microphone Security Outdoor Surveillance Microphone - High Sensitivity Preamp Amplified Pickup Device for DVR, RCA Tiny Mic Ideal for External Camera Sound, Waterproof Metal Case - Best Gift by Lisa Monnier

I installed and tested the US retail mic on the Sunba 405 PTZ camera and also tried 2 other mics because I was unsatisfied with the sound quality and I thought , the microphone was the culprit, so I tried different ones. We use microphones to hear the sounds of birds and other wildlife in the backyard through multiple backyard cameras controlled through the NVR and displayed on the TV. We can choose any camera and hear the sound through the TV. We were dissatisfied with the quality of the sound reproduced by the microphone, but soon found that the problem wasn't there. After lots of testing we determined the problem was the IP camera severely limiting audio bandwidth and external microphones, all 3 performed decently with US sales being second out of three (MicroSeven, US sales and Taunton). . . Read on to learn more about our test results. Pros: -- EASY INSTALLATION: The Sunba 405 comes with an RCA audio jack and a power jack on the dongle for connecting a microphone. Simply "plug and play". The microphone body also has a mounting bracket with a hole for surface mounting. - OK, THIS INCLUDES RCA ADAPTER: A male to male RCA adapter is included, which is very convenient as it is required to connect a microphone to a sunba camera. -- SENSITIVITY TO SOUND: The microphone picks up low and high sounds. For example, I have ultrasonic mole repellers in the ground that emit a high-frequency squeak every 60 seconds. The chirping is very quiet to the bare ear and easily picked up by the microphone. -- EASY TO HEAR THE SOUNDS OF NATURE: I could hear pigeons, birds chirping, hummingbirds yelling at other hummingbirds and owls at night -- THE MICROPHONE IS WRONGLY RATING THE BAD QUALITY: Tests using special sound analysis software and a special test microphone revealed that the poor audio quality is caused by the IP camera, NOT the MIC! The camera cuts off the audio bandwidth at around 4 kHz, while the microphone bandwidth is well over 12 MHz. See the attached diagram showing the camera's narrow bandwidth and the much higher microphone bandwidth. An IP camera digitizes analog audio from a microphone, and this particular sunba camera uses a low sample rate, resulting in very poor audio listening accuracy. The bandwidth through the camera offers a sound quality more in line with that of an old dial-up analog princess phone. The performance of the microphone itself, while by no means Hi-Fi, is very capable, offering enough bandwidth up to 12kHz and beyond to produce good sound quality. IP cameras don't really negotiate audio quality as they do low sampling which results in poor audio as I found with Sunba's IP camera. - 2nd best of 3 mics: I tried 3 different mics on my adventure to improve the IP camera sound and while they all had good specs too, US sales came second in terms of audio bandwidth . -- FORCE"Y". US sales have a nice and handy feature that provides a Y power cable so you can connect them to the camera's 12V power supply and don't need a separate power converter. 20 kHz and very reasonable levels up to 12 kHz. If you feel your audio isn't up to par, first look at an IP camera as a likely limitation.