Actually these related products have long been documented as being completely ineffective
by a wide variety of respected independent sources (those organizations which are not actually selling
Some of the more notable ones are:
Furthermore, even attempting to jam police radar is a federal offense, one in which the FCC doesn't take too kindly to.
Trust me, stick with a top quality radar detector and proven laser countermeasures and you'll be much better off.
Driving with a false sense of security is even worse than driving with out any.