Our AUDIO NULLIFIER protects room conversations where sensitive information may be exchanged by generating a random masking sound which desensitizes any microphone that is near. This jammer is effective against any microphone based eavesdropping device including tape recorders, RF transmitters, hard wired microphones and shotgun microphones.
* Protects up to 150 sq. ft. of Space
* End Mounted Control
* Last up to 6hrs.
* 9V Battery ( Can Use Your Own Rechargeable)
* Illustrated Instructions
* 4 1/2 x 2 1/2 x 1 1/2