Feeler: GB Car Parking Sensor System Options

[GriffGirl]

I have an opportunity to buy these, but I want to know first if it's something you guys would be interested in. Cost would be in the neighborhood of $40, here's a picture and the specs as copied from the mfr's site:






1) Four sensor system
2) the system will automatically start up when reversed
3) radar detects distance, voice indicator
4) Bi Bi Bi alarm system (I have no idea what this means right now lol)
5) suitable for any environment
6) All kinds of sensor colors are available
7) High quality and easy to install
8) working voltage: DC 12V
9) max power: 5W
10) working temperature: -40—–80 °C
11) indication Distance: 0.2—-2.0m
12) alarm distance:0.4m—–1.5m
13) any color sensor is available,suitable for any car
14) the closer the obstacle,the faster the alert ,keep frequency alarming to indicate safety zone,caution zone, danger zone.