this system emit some sound when is near the obstacle (wall, column, other vehicle, etc) when backing?
1871377
No. it does not. if you get the mirror, you will be disappointed. the mirror does not have a brighten screen for the day time.I ended up using the little flat panel one and it works fine. the backup camera will work with either one.
1871378
No. it does not. if you get the mirror, you will be disappointed. the mirror does not have a brighten screen for the day time. I ended up using the little flat panel one and it works fine. the backup camera will work with either one.
1867961
There's a red and a white colored set of audio connectors that go from the base to your audio system. Check to see that they are both plugged in solidly (you can pull them out and reinsert). I also discovered that the further away from the base I sat, the easier it was to start losing the sound track, which might sound like one side or the other is missing.
1025895
There is a place for headphones. It does not make a lot of noise, but will make a noise when detecting something.
606929
You can definitely hear the exhaust. I pull 30ft. Gooseneck often. It's not obnoxiously loud, but you can hear it.
456858
The base is very loud even on low and a window open I can hear it outside to test it. Works well test before mounting so no false alarms.
2062643
Not sure what is being asked here, but the alarm unit will make it's sound if anything or anyone moves in front of the monitor/motion detector unit within a range of about 9 feet, in my experience with it.
445886
THe background noise is muffled but not completely drowned out. Hope this helps you :)
1676139
They have tweeters that you can aim back toward where you sit. I have mine on the left/right walls too. Make sure you have a center channel and you'll be fine.
564499
I've heard that the only thing that wouldn't work is Sonic Radar which tells you where sound is coming from inside a game (I really don't use it)
1161603
There is not much background noise from the unit. It is very clear. We use it daily on the back porch and have no issues.
803090
I have a motion sensor mounted in my hallway and the receiver in the garage turning on a loud bell(instead of the lights) when I'm away, that's about 25 feet through walls, I'm betting it goes farther.
230625
There is a piece that connects to the the sound and vibrate switch just below the top left corner
594537
I'm no scientist but....... Inside, closest to whatever is generating the sound energy. http://www.acousticsblog.com/2012/mass-loaded-vinyl-and-the-correct-uses-for-it-or-how-i-learned-to-stop-worrying-and-install-things-the-right-way/
797508
You can hear it beep within a 20 foot area if not buried under a pillow and dependigng upon the wall construction. Obviously you may have to walk around the house at some point if you don't hear it beep in the area you are in.
421141
Mount under or on rear of vehicle. Connect pne wire from unit to wire which feeds backup lights. (Do not cut vehicle wire, use splice connector to connect - I also suggest wrapping splice with electrical tape) Connect other wire from unit to chassis ground (almost any metal part of the vehicle). If done correctly unit will automatically sound whenever vehicle is shifted into reverse while the motor is running. NOTE: Have a second person stand to side behind vehicle to observe - DO NOT stand behind vehicle for safety reasons. A 12v probe (looks like an ice pick with a wire out of the handle) will help you find the "reverse" or backup lighting wire. AGAIN! Be safe!
1350820
It did this when I had a speaker near it and it caused vibration. Once I moved the speaker away and had it where no vibrations hit it, it worked fine.
1128323
No. It does not work because it's omni-directional, i.e., it amplifies everything including background noise in front and behind. For example, if your nephew takes a step or a car passes by, those sounds will be amplified, obscuring what he is trying to hear.