SEL ULTRA MAX is a unique and effective ultrasonic device used to protect classified information, based on special algorithm of generating of the digital ultrasonic jamming signal. Device effectively protects confidential conversations, conferences, business conferences and secret meetings against eavesdropping and recording with any voice recorders.
SEL ULTRA MAX is characterized by solid construction and simplicity of use. The briefcase is not opened, and the access code is only a visual addition. It is a device dedicated to businessmen who care about the discretion of any conversations or business negotiations.