The telephone tap nullifier has the greatest ability to actually defeat telephone taps! Also the telephone tap nullifier utilizes technology that jams any listening device which use the telephone line to listen to room conversations, This telephone tap nullifier is the ideal device to protect privacy and maintain the security of communication. For use on any telephone or fax line anywhere.
Specifications:
FCC approved
Made in USA
Normal and secure calling modes
Monitors exact line voltage in on hook and off hook
condition
