Contactless cards live at 13.56 MHz. Your key fob broadcasts at 315 or 433 MHz. AirTag pings at 2.4 GHz. The wallet rated for one is invisible to the others. The category difference between RFID-blocking and Faraday shielding — and why one stops the threats that actually matter.
RFID-blocking is a narrow subset of Faraday-shielding. RFID wallets cover the 13.56 MHz contactless-payment band — useful for skimming defense, useless against the threats that actually matter. The key-fob relay attack runs at 315/433 MHz; AirTag stalking runs at 2.4 GHz BLE; hotel-WiFi MITM runs at 2.4/5 GHz. A bag rated 76–85 dB across 30 MHz to 10 GHz blocks all of these — and incidentally also blocks 13.56 MHz contactless. Faraday is the category. RFID wallets are a corner of it.
The five-test protocol takes five minutes. Drop your fob in your RFID wallet. Stand five feet from the car. Press unlock through the wallet. If the doors open — and they almost always do — the wallet doesn't block what matters.
| Threat | Frequency | RFID wallet | REVIS-1 Faraday |
|---|---|---|---|
| Contactless card skimming | 13.56 MHz | Yes | Yes |
| Key-fob relay attack | 315 / 433 MHz | No | Yes |
| AirTag / BLE tracking | 2.4 GHz | No | Yes |
| Hotel-WiFi MITM | 2.4 / 5 GHz | No | Yes |
| GPS location lock | 1.5 GHz | No | Yes |
| Cellular IMSI catcher | 700 MHz – 6 GHz | No | Yes |
| FM-broadcast leakage | 88 – 108 MHz | No | Yes |
REVIS-1 Executive Guard. Three independent Faraday-shielded chambers — laptop, tablet+phone, wallet+keys+RFID. The wallet+keys chamber holds your contactless cards AND your key fob AND any RFID credential you carry, isolated together at 76–85 dB across 30 MHz – 10 GHz. The category that includes your old RFID wallet — and everything it never blocked.
The category that includes your wallet — and everything it never blocked. Hand-assembled in the United States. Reaches your door in 3–5 business days.
Acquire — $129General information about RFID and Faraday-shielding categories as of May 2026. Specific attenuation values vary by product; verify spec sheets before purchase.