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Technical Details
- Super high gain mini microphones capturing audio evidence for security camera system
- Preamplifier used to increase a microphone’s low output voltage to a stronger usable level
- Built in on board IC preamp, low noise, high gain and auto level adjustment
- Pick up every sound with this super high gain micro audio system
- RCA connector, power supply and 50ft power and audio extension cable included
Product Details
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Product Description
Collect audio evidence as important as capturing video evidence, this preamp microphone kit is a perfect addition to any video security camera system. This high gain mini preamp and microphone is the best for CCTV professionals, with Preamplifier IC built on board, it increase a microphone's low output voltage to a stronger, more usable level, it features low noise, high gain and auto level adjustment on-board preamp circuit. This mini-size microphone is only 5mm in diameter, easily hidden. Kit also including a 12V DC regulated power supply, 50 feet power and audio extension cable with BNC and RCA connections and free warning decal. Notice: This item is VideoSecu brand. Please report to Amazon if you received one without VideoSecu logo.
Customer Reviews
Most Helpful Customer Reviews
21 of 22 people found the following review helpful
Amazon Verified Purchase
I use this microphone with other professional mics for bird and wildlife audio as well as general security. Please note - LOUDNESS is determined by the gain (think volume control) of the security unit circuits - not just this microphone. More about that below if you wish to read on. For now I will say that this mic, being "powered", has a low noise level and a high sensitivity in a 60 degree cone to the the general direction it is pointing. It is very transparent but does not have (or need) outstanding fidelity. It has AGC (automatic gain control) to even out the loud and soft sounds and that is a good feature. It is ideal for security uses and the price is right! Is it loud enough to capture the elusive noise you WANT to record with your security DVR? It depends on you DVR audio circuits and how quiet of a noise you EXPECT to record. You will just have to try it but I suspect that most "powered" security mics will record at about the same loudness. In a nutshell, this one seems to be a very good value.
Details - - - My microphones all go through an audio mixer before patching into the security DVR or other recorder. Yes, I have meters to monitor and adjust loudness too. Also, I listen with headphones to avoid any chance of feedback loops. If I want any mic to be louder (more sensitive to faint sounds in the lingo of an audio engineer) I turn up the mixer's gain. In theory the more you amplify a microphone signal the fainter and more distant the sound you can hear - but there are always limits in the real world, huh?
Turn any mic way, way up and you may hear the rumble from your home's fridge motor, furnace, AC, cars on distant roads, etc (a general low frequency rumble). Also, the more you turn it up the more "line noise" you hear. Line noise sounds like static and can become so loud that it drowns out the distant noise you want to hear. WARNING: Opening a door or speaking anywhere near the mic with the volume cranked up will blow the headphones right off your head and probably ruin your hearing too. Please note that most security DVR systems do NOT have an audio gain control or volume knob. Audio gain in a security system might be useful to folks who complain that a certain mic only recorded things a few feet away!
They do make expensive, professional microphones for videographers and film makers that are very sensitive to distant, quiet noises while keeping background static and noise to a minimum (think about recording roaring lions from 500 yards). Some use a parabolic collector (like a satellite dish) and some called shotgun mics are long, skinny things that listen to a very narrow tunnel of sound much like binoculars or a zoom lens that looks far away - but at a very small area. Search Amazon for "parabolic microphone" to see such toy and professional microphones.
Back to this security mic. Actually this "powered, active electronics" mic has less noise and is better for security recording than some professional microphone costing hundreds of dollars. You see, security mics have high gain, low noise and AGC. For any audio geeks out there, this mic is much quieter with MORE gain than any dynamic mic - but with less dynamic range. I would have to use a phantom powered or active electronics professional mic to get as much sheer gain with as low a noise floor as this cheap security mic!
In conclusion, for it's intended use this microphone is very good - all that you need. But, can you record a grasshopper burp in the next block? Nope! Once again, your mileage (and mic sensitivity) will vary depending on the security DVR you hook it to but I suspect that most security mics will record at about the same "loudness". Try this one and see if it doesn't fill the bill for recording sound around the area your camera covers.
Details - - - My microphones all go through an audio mixer before patching into the security DVR or other recorder. Yes, I have meters to monitor and adjust loudness too. Also, I listen with headphones to avoid any chance of feedback loops. If I want any mic to be louder (more sensitive to faint sounds in the lingo of an audio engineer) I turn up the mixer's gain. In theory the more you amplify a microphone signal the fainter and more distant the sound you can hear - but there are always limits in the real world, huh?
Turn any mic way, way up and you may hear the rumble from your home's fridge motor, furnace, AC, cars on distant roads, etc (a general low frequency rumble). Also, the more you turn it up the more "line noise" you hear. Line noise sounds like static and can become so loud that it drowns out the distant noise you want to hear. WARNING: Opening a door or speaking anywhere near the mic with the volume cranked up will blow the headphones right off your head and probably ruin your hearing too. Please note that most security DVR systems do NOT have an audio gain control or volume knob. Audio gain in a security system might be useful to folks who complain that a certain mic only recorded things a few feet away!
They do make expensive, professional microphones for videographers and film makers that are very sensitive to distant, quiet noises while keeping background static and noise to a minimum (think about recording roaring lions from 500 yards). Some use a parabolic collector (like a satellite dish) and some called shotgun mics are long, skinny things that listen to a very narrow tunnel of sound much like binoculars or a zoom lens that looks far away - but at a very small area. Search Amazon for "parabolic microphone" to see such toy and professional microphones.
Back to this security mic. Actually this "powered, active electronics" mic has less noise and is better for security recording than some professional microphone costing hundreds of dollars. You see, security mics have high gain, low noise and AGC. For any audio geeks out there, this mic is much quieter with MORE gain than any dynamic mic - but with less dynamic range. I would have to use a phantom powered or active electronics professional mic to get as much sheer gain with as low a noise floor as this cheap security mic!
In conclusion, for it's intended use this microphone is very good - all that you need. But, can you record a grasshopper burp in the next block? Nope! Once again, your mileage (and mic sensitivity) will vary depending on the security DVR you hook it to but I suspect that most security mics will record at about the same "loudness". Try this one and see if it doesn't fill the bill for recording sound around the area your camera covers.
9 of 9 people found the following review helpful
Amazon Verified Purchase
We hooked the audio up to the security system we bought for our home. It works as others said it would. Picks up sound well.
8 of 8 people found the following review helpful
Amazon Verified Purchase
This microphone is my first and I am very happy with the the way it works, the size is good for concealment. and i would like to thank
amazon for what they have for god customer services.
amazon for what they have for god customer services.
Most Recent Customer Reviews
bad product I don't advise anyone to buy it
The voice is very weak and you hardly could hear the recorded voices. I added to my dvr like it should but it didn't work good I don't know if my dvr can't match with it or... Read more
Published 3 days ago by Abe Samhan
My My My "The Mic's" and "Amazon"
This mic is all that it is supposed to be in every way,sound ,clarity,sensetivity and overall performance.And my satisfaction with the sellers performance is all that I could want. Read more
Published 1 month ago by "The Jam"
calidad de microfono
buen producto , mi puntuacion es que se oyo como un zumbido cuando se aumenta el volumen del tv. puede que tenga que usar algun implemento electronico para disminuir ese ruido ,... Read more
Published 2 months ago by victor
Nice mic
It works well however i wish they would have throw in a smaller RCA cable. Not a big problem and the fact they give two options for power is nice.
Published 3 months ago by Jetspeedz
Too much static and background noises
The product arrived as promised. However, the quality of the product was very disappointing. We used this microphone as part of the security system. Read more
Published 5 months ago by Eden
Suits my needs perfectly.
Purchased to monitor outdoor sounds. This is not a high fidelity microphone, but gives plenty of gain so I can hear when the postman comes or when wildlife is foraging around the... Read more
Published 5 months ago by James J. Flannery
I like it
I used one to install next to my security camera.Its easy to install, it works good and I am going to buy more.
Published 6 months ago by larryhinz
does not work
the plugs do not mesh! 50 feet of cable does not have attachment to put the audio attachment on the unit?
It does not work!
It does not work!
Published 7 months ago by agility dog
Nothing but static
Poor quality microphone. Get the Q-See QSPMIC one instead. All you hear is static and the build quality is very poor. AC Adaptor lights up sometimes. Read more
Published 13 months ago by Anon
Awesome mic
This is an extremely sensitive and high quality microphone, especially for the price. Most retailers will charge you this price for the wire alone. Read more
Published 14 months ago by Paul C.
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