Leakage of your private conversations can have catastrophic consequences and cause irreparable reputational damage. With Guardian Ultrasonic you can safely bring your phone to sensitive meetings and be certain that your private conversations are never recorded and stay private.

When placed on Guardian Ultrasonic, your phone can't hear anything of its surroundings. You can talk freely without your phone secretly listening to you.

The built-in battery will comfortably take you through multiple long lasting meetings a day, with over 4h of usage and over 1 week of standby time.

No internet access, software updates, Bluetooth, WiFi or any other gimmicks. Designed for privacy and security by eliminating major attack surfaces.