Every device broadcasts a signature — with or without an active connection
Detection, tracking, and remote activation don’t require an open call or data session. An anti-signature kit suppresses the channel itself, at the hardware level, regardless of what is running on the device.
2G / 3G / 4G / 5G
2.4–5.9 GHz
1.1–1.6 GHz
Satellite signal
2.40–2.483 GHz
0.2–0.9 GHz
Blocked while coupled
Approx. 20–25 dB attenuation
Specify anti-signature, not just anti-spyware
Anti-malware tools are reactive and device-specific. An anti-signature specification is device-agnostic — a physical performance requirement any compliant kit must meet, independent of phone model, OS, or the spyware family in circulation.
Anti-spyware software
- Detects known threats after infection
- Tied to specific OS and device model
- Requires updates to stay effective
- Cannot stop a zero-click exploit before it runs
- Re-infects the new device when the handset is changed or reset
VRT-ASG-01-27 anti-signature kit
- Suppresses the transmission and audio path directly,
- Works on any device, any OS, any infection status
- No software lifecycle — nothing to update or patch
- Effective even when spyware is actively running
Ideal for confidential meetings where your privacy is paramount
Confidential meetings & boardrooms
Neutralize the risk of a phone in the room recording or transmitting during sensitive discussions, without asking attendees to surrender their devices.
Government & ministerial offices
Keeps policy deliberations and classified briefings free from covert audio, camera and location capture by compromised handsets.
Armed forces & defence installations
Supports emission control in command posts, briefing rooms and restricted installations where personnel carry personal devices.
Security & intelligence agencies
Denies adversaries a covert listening post through compromised handsets during debriefs, analysis sessions and source handling.
Covert operations
Removes the RF and acoustic signature of operatives’ phones, so location and conversations cannot be traced or intercepted.
Sensitive field missions
Passive, battery-free protection for devices carried into remote or hostile areas, independent of network coverage or connectivity.
Convoy protection
Prevents phones inside vehicles from broadcasting route, position and timing that could be exploited to track or target a convoy.
Law enforcement & emergency response
Protects case strategy, informant identities and crisis coordination from leaking through officers’ or responders’ phones.
Features
Suppression coverage: Cellular 2G/3G/4G/5G, Wi-Fi, GPS/Satellite, Bluetooth, RFID/NFC, Camera, Microphone
Frequency range: 200 MHz – 40 GHz (EMF)
Power: None — fully passive, no battery or firmware
Acoustic attenuation: Approx. 20–25 dB (measured, third-party lab)
Security screening: Fabric construction passes standard X-ray screening
Reference standards: IEEE 299-2006, MIL-STD-188-125-2 (design-reference)
Build: Ruggedised and waterproof design
Operation: No battery. No firmware. No app to configure — nothing to update, patch, or bypass
Independently verified performance
Acoustic and RF path-blocking performance is drawn from third-party laboratory trials of the enclosure. Figures shown are the actual measured results — not projections. All tests have been conducted by third-party laboratories based in Taiwan.
20–25 dB
0/2
200 MHz–40 GHz
Acoustic signature attenuation — independent lab trials
| Trial | Unshielded | Shielded (coupled) | Attenuation |
|---|---|---|---|
| Trial 1 | 85 dB | 63 dB | −22 dB |
| Trial 2 | 75 dB | 54 dB | −21 dB |
| Trial 3 | 68 dB | 43 dB | −25 dB |
| Trial 4 | 85 dB | 65 dB | −20 dB |
Signature suppression coverage envelope (200 MHz – 40 GHz)
| Cellular 4G/5G | 0.7–3.8 GHz |
| Wi-Fi | 2.4–5.9 GHz |
| Bluetooth | 2.40–2.483 GHz |
| GPS / Satellite | 1.1–1.6 GHz |
| RFID / NFC | 0.2–0.9 GHz |
Coverage-range table, not a dB-vs-frequency performance curve. Standard X-ray security screening compatibility: Pass.
Reference standards
| IEEE 299-2006 | Referenced as the measurement methodology for enclosure shielding-effectiveness testing. |
| MIL-STD-188-125-2 | Referenced as the design standard for protection against High-Altitude Electromagnetic Pulse (HEMP) source-region and transient EM environments. Enclosure construction is designed with this standard as a reference target. |
Certification status: design-reference alignment to IEEE 299-2006 and MIL-STD-188-125-2.
Full test report
The complete third-party shielding report for VRT-ASG-01-27 is available to qualified buyers on request.
Request a quotation for VRT-ASG-01-27
| Part number | VRT-ASG-01-27 |
|---|---|
| Product | Passive anti-signature kit for smartphones — ruggedised and waterproof, no battery |
| Test report | Full report on request |
| Manufacturer | Virtuit, 3F.-6, No. 1, Fuxing N. Rd., Songshan Dist., Taipei City 10595, Taiwan |
| Pricing | Please contact us for more information |
| Sales contact | +886-2-2721-2367 · support@virtuit.com.tw |
For technical specification sheets, bulk quotations, or further information, get in touch. Quote requests and specification-sheet requests for VRT-ASG-01-27 are handled directly by Virtuit, Taipei, and quoted in USD. Use the form below and include quantity and delivery location.