Portable Acoustic Security
HARP₂® is a portable speech privacy and acoustic security system designed to protect sensitive conversations against unauthorized recording and eavesdropping. Two complementary protection modes that can operate simultaneously. Powered by USB-C PD, HARP₂ can be deployed in seconds.
Patented Voice-Mix Technology
Safety Evaluated by TÜV SÜD
In Service in 70+ Countries
What Changed in the Second Generation
HARP₁ won the Innovation Product Award at GSX Las Vegas in 2018. HARP₂® is the second generation, and the reason it matters is not the number.
Recording hardware improves, and so does AI recovery. HARP₂® adjusts its shielding as recovery techniques advance, so protection does not decline from the day it is commissioned.
A device with fixed firmware is at its most effective on the day it is installed. HARP₂® updates over the air through SANTOR Connect App and stays current.
Runs from USB-C Power Delivery source. Table, tripod, vehicle or backpack, wherever the meeting is, with no dedicated power infrastructure.
Multiple units synchronize across a large room or a command post from one interface in SANTOR Connect App.
Manual button and knob on the unit, the SANTOR Connect App, or a remote power switch with direct circuit control. Three independent paths for any operational scenario.
Extended from one year on HARP₁. For a decision measured in procurement cycles, that is the difference between an asset and a depreciating one.
You control who enters. You do not control what they carry.
A typical conference room holds more than thirty microphones before anyone hides one. Phones, laptops, tablets, watches, headphones. Smart glasses, which are on their way to replacing the phone entirely. Concealed units inside a pen, a cable, a power adapter.
Every one of them records to internal storage whether or not it is connected to anything. The file is extracted afterwards and run through AI recovery at leisure.
Who enters the room is governed. What transmits is monitored. The recorder fixed under the tabletop sits in an acoustic shadow that room-level protection physically cannot enter.
Nothing about your procedure failed. The recording was made anyway.
HARP® is the device SANTOR® is known for, and HARP₂® is where it is now. A portable dome for the table it protects.
- Sits on the table, under it, on a tripod, in a vehicle or in a backpack
- Protecting within seconds of being set down
- No microphone of its own. Nothing new is introduced into the room
- Runs from a USB-C PD source
Competing devices often include a microphone for sensing or configuration. That places a live microphone, running firmware you did not write, inside the room you are trying to clear. Nothing about deploying it enlarges the attack surface it exists to reduce.
So where does the voice come from? You send a sample once, through the SANTOR Connect App. The unit holds it and works from that. No microphone is ever listening in the room.
You are not asked to trust one more device in the room.
Two Modes,
Running Together
You cannot stop the recording. You can reduce what anyone is able to do with it. Both modes work on the recording after it exists.
High-frequency ultrasound forms a hemispherical shield around the unit. The MEMS microphones inside nearby devices capture noise where they expect speech. Barely audible in the room.
Patented acoustic masking, built from the speaker's own voice, sent once as a sample through SANTOR Connect App and re-emitted as a randomized overlay. Not babble, not white noise. What a microphone captures carries the same frequencies as the speech it protects.
Understand how different approaches address microphone capture, meeting usability and deployment requirements.
| Feature | HARP₂® | Alternatives | |
|---|---|---|---|
| Protection Modes | Two modes, Discreet and Voice-Mix, running together | Typically one mode, ultrasound or basic noise | |
| Ultrasound Coverage | Hemispherical, around the whole unit | One direction, or a horizontal ring | |
| What Participants Wear | Nothing | Headset masking puts everyone in a headset | |
| Patented Voice-Mix | Your own voice frequencies, multiple voices | Generic noise or random words | |
| AI Speech Recovery | Validated against leading AI recovery tools | Generic noise is filtered out reliably | |
| Adaptive Shielding | Yes | No | |
| OTA Firmware Updates | Through the SANTOR Connect App | None. Fixed technology | |
| Multi-Device Sync | From one interface | Manual control only | |
| Built-in Microphone | None | Often includes one, a live microphone in the room | |
| Safety Evaluation | IEC 62368-1 Safety Evaluated by TÜV SÜD | Not evaluated | |
| Power Source | Any USB-C PD source | Proprietary connectors or low-power battery |
Where It Goes
The meeting moves. So does the protection. One unit, configured differently for a boardroom, a vehicle and a hotel suite.
Tabletop, under-table, ceiling or wall-mounted for permanent positions. Multiple units synchronized across a large room from one interface. SANTOR® specifies for the room rather than from a catalogue.
Hotel rooms, embassies and temporary facilities. Tripod, table, vehicle or backpack, from any USB-C PD source.
Inside an MCP or command post, HARP₂® closes what Faraday shielding alone cannot.
Shieldex® EMC Enclosure
In an MCP or command post, HARP₂® closes what Faraday shielding alone cannot. RF shielding stops what transmits. Every device inside the enclosure still records locally, and that recording leaves with the device.
Through its partnership with Shieldex, SANTOR® supplies deployable SCIF-grade enclosures. Place HARP₂® inside for both layers at once: nothing leaves the enclosure, and nothing captured inside it is usable.
Two protection modes at once. Covers the shadow under the table that ceiling systems cannot reach.
Replaces a standard ceiling tile. Protects down into the room and up into the ceiling void.
VAULT mounts to a phone or to the surface a conversation escapes through.
POUCH is the anti-eavesdropping bag the VAULT travels in, built so a running unit keeps working inside it.
Every SANTOR® system is designed, engineered and built in Canada. For the governments SANTOR® serves, supply chain control is a procurement requirement rather than a preference.
Graudio Forensics, an independent forensic-audio firm, has stated publicly that the Voice-Mix overlay cannot be cleaned into court-admissible evidence.
IEC 62368-1 Safety Evaluated
Compliant
Compliant
Compliant
Certified module
Unmatched Speech Protection
These exclusive features set the HARP₂® apart from any other speech protection device.
The HARP₂® creates a unique hemispherical protection, utilizing powerful ultrasound to disrupt nearby microphones. Unlike basic, rudimentary single-direction or horizontally-oriented ultrasound generators, the HARP₂® forms a half-sphere shield from the surface up, offering broad audio security.
By strategically deploying the necessary number of HARP₂® devices, users can safeguard conversations with the highest level of confidentiality. This approach ensures comprehensive coverage and eliminates blind spots, setting a new standard in protection against unauthorized audio surveillance.
The HARP₂® is proudly designed and manufactured in Canada, benefitting from collaborations with universities and acoustical specialists, including PhD holders.
Utilizing SANTOR®'s proprietary patent, the HARP₂® creates a personalized audio barrier with the users' voice frequencies, to provide protection against audio forensic cleaning.
Moreover, it stands as the only speech protector certified by the independent certification organization TÜV for meeting health and safety standards.
Unlike any other device, the HARP₂® provides a unique advantage in terms of maintaining its relevance to secure your conversations.
Regular software updates delivered remotely ensure the HARP₂® remains competitive and responsive to new threats, as part of our ongoing effort to enhance security.
At SANTOR®, we deeply value our clients’ feedback, driving our dedication to continuous improvement with each update.
I’ve held meetings using this device! It’s excellent for those who don’t want to be recorded! I speak publicly because the product is outstanding! I’m an Electronic Engineer and a Reserve Colonel. I worked in the Intelligence sector of Brazil’s Ministry of Defense and tested several anti-surveillance and anti-recording devices. Santor’s stood out from them all. It’s the best I’ve ever used.
As foreign spying and insider threats grow, securing conversations is more vital than ever. While policy demands that classified talks happen in secure rooms, that’s often not feasible. The HARP® can help turn any space into a safer setting for sensitive exchanges, it definitely offers much stronger privacy. I see clear value for this tech in defense and government use.
Barely. Conversations stay natural and uninterrupted. The sound is close to inaudible for most people, while nearby microphones capture noise rather than speech.
Yes. It disrupts microphones, including the ones you want working. Deactivate protection through SANTOR Connect for calls you are recording deliberately.
No. HARP₂® works acoustically. It transmits nothing on any regulated radio band, which is exactly what distinguishes it from an RF jammer. Sound is unregulated in most countries. Check your own authorities and internal policy.
HARP₂® does not stop a device from recording. Instead, it disrupts the captured speech, making the conversation much harder to recover from the recording under the operating conditions described in the technical documentation.
Provided during assessment, under NDA where the deployment requires it. In this category the specification sheet is the tender, and the numbers that decide one are not left on a public page.
Safeguard your conversations against unauthorized eavesdropping and recording
Watch a complete video demonstrating both protection modes and understand their unique benefits in different scenarios.
Easily request and sign an electronic quote, follow the payment instructions, and promptly receive your HARP₂® units.
Schedule a free training session to learn optimal usage. Use the HARP₂® to keep your conversations private and enjoy true peace of mind.
Compliance
You Can Rely On
The HARP₂® device, is the world's only Speech Protector that is TÜV certified for workplace health and safety.
Here are a few more features that set the HARP₂® apart:
Secure your VAULT today with a $100 deposit (per unit) and be among the first to experience the future of speech security!
Full refund available before shipping. No risk, just peace of mind!
Shipping expected from Q2 2026.
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Currently out of stock.
