Post by Helen Dagner on Jan 24, 2012 0:13:10 GMT -5
autos.aol.com/article/howler-police-siren/?ncid=webmail10 The New Police Siren You Can Actually Feel
"The Howler" uses a low frequency vibration that can be felt from up to 200 feet away
"The Howler" uses a low frequency vibration that can be felt from up to 200 feet away