Discreet Mode
Uses ultrasonic technology to create a hemispherical protection zone around the device. It is designed to interfere with microphone capture while remaining barely audible under suitable operating conditions.

Protect the confidentiality of your organization's discussions with an advanced speech protection solution designed for sensitive conversations.
Contact TOTALOFFTEC for product availability, demonstrations, and application-specific information.
Confidential meetings, strategic discussions, and sensitive briefings require more than conventional security measures. The Santor HARP® Speech Protector is designed to help reduce the risk of unauthorized audio recording and eavesdropping in environments where conversation privacy matters.
Developed by Santor, a Canadian security technology company, HARP® offers two complementary protection modes. These technologies are designed to interfere with the ability of nearby recording devices to capture intelligible speech.
Uses ultrasonic technology to create a hemispherical protection zone around the device. It is designed to interfere with microphone capture while remaining barely audible under suitable operating conditions.
Uses Santor's patented acoustic masking technology and the user's voice frequencies to create a personalized sound barrier intended to make recorded conversations less intelligible.
HARP® is intended for organizations that handle sensitive information, including government agencies, corporate security teams, and other institutions that require additional safeguards for confidential discussions.
Its portable form factor supports deployment in different settings, subject to the product configuration and operating requirements. The system can be configured using the supported mobile application.
Acoustic protection is most effective as part of a broader security programme. Organizations should combine suitable speech protection with cybersecurity, physical security, and staff awareness measures.
HARP® combines Discreet Mode and patented Voice-Mix Mode to help protect confidential conversations against unauthorized recording.
Complement acoustic protection with appropriate encryption, network security, and cybersecurity policies.
Support secure environments through access control, technical surveillance countermeasures (TSCM), and physical security procedures.
Strengthen organizational security with staff training, confidentiality policies, and consistent security practices.
No single device should be treated as a guarantee against every recording method. Protection depends on the device, microphone technology, placement, operating conditions, and the overall security environment.