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Design that minimizes exposure. Guidance that prevents misuse.

KPIX‑5 finding (packaging & use):
“The RF Safe case was the only case to explicitly say on the product packaging itself that the case should only be used with the front flap closed while on a call.
Our tests found the flip cases reduced RF by an average of 85%–90% out of the face of the phone, when used properly, with the front cover closed.”

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Physics before marketing

If a feature can degrade antenna performance, the phone’s power‑control system increases uplink transmit power to maintain service. Higher transmit power means higher RF emissions at the source (the phone).
Accordingly, QuantaCase omits features that can degrade the link, even if they are popular. Our design choices follow RF engineering, not trend features.

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Talk to an expert

Questions about RFR mitigation or correct use? John Coates (RF Safe founder) has 30+ years of experience and is available to help.
Call / Text: 727‑610‑1188

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Select your phone

[Choose your brand →] (dropdown placeholder)

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What QuantaCase is designed to do

• Minimize near‑body exposure by placing a conductive shield between your body and the handset during calls and carry.

• Avoid power ramp‑ups by staying ultra‑thin and free of nearby metal that can detune antennas.

• Support correct use with clear instructions and hardware that discourages misuse.

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Design decisions (and why)

1. No metal loops
   Metal close to antenna regions can detune antennas and change field distribution around the head or body. We do not add metal strap loops or decorative metal near the phone’s edges.

2. Non‑detachable (no magnet/plate system)
   Detachable cases often use magnets and steel plates near the frame, where many phones locate antennas. These parts can degrade the link and trigger higher transmit power. QuantaCase is a single, non‑detachable assembly.

3. Shielded ear‑side aperture
   Large openings in a shield reduce effectiveness. Our ear‑side opening uses a conductive mesh, maintaining continuity across the flap while preserving audio.

4. Ultra‑thin
   Extra bulk between the phone and network can worsen the link. QuantaCase keeps thickness low to avoid unnecessary power increases.

5. One RFID‑blocking slot
   One slot keeps the shield flat and aligned. Thick, multi‑slot wallets make correct orientation harder and add bulk that discourages proper use.

6. Side latch & secure grip
   Keeps the cover aligned and your hand away from antenna zones, without squeezing the phone’s sides.

7. Built‑in stand
   Encourages distance during video/streaming—simple, practical exposure reduction.

8. User‑verifiable shielding
   The ear‑side mesh is ohmmeter‑checkable so users can verify electrical continuity of the shield layer.

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How the shielding works (concise)

• The front flap contains an electrically conductive layer.

• Conductive materials support surface currents that reflect and redistribute incident RF energy; effectiveness depends on continuity and aperture size.

• Keeping the shield between the phone and the body reduces the field incident on the body in that direction.

• We use conductive deflection in the case. (Absorptive ferrite components are used only on wires such as air‑tube headsets—not inside the case—so the phone’s power control is not provoked by extra attenuation behind it.)

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Usage guidelines (follow exactly)

Calls at the ear

1. Place or answer the call.

2. Close the front flap so the shield is between the phone and your head.

3. Talk normally. Use speakerphone when practical.

Pocket carry

• Keep the shielded front flap toward the body (back pocket preferred).

Texting / speakerphone

• Fold the flap behind the phone so the shield remains between your hand and the device. Maintain distance from the rest of the body.

Night

• Prefer distance; use airplane mode when practical.

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Quick self‑check (TruthScore)

Count each red flag you see on a “radiation” case:

• Metal strap loops or other metal near antenna edges

• Detachable shell with magnets/plates

• Large unshielded ear‑side hole

• Very thick 360° wrap

• “99% protection” claims without whole‑device testing or orientation guidance
  0/5 = acceptable. Anything else: avoid.

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Design differences (feature‑level, plain language)

Notes: Brand columns reflect publicly advertised designs and typical models. The risk mechanism is straightforward: any feature that degrades the link can increase phone transmit power and exposure.

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Verification you can do at home (ohmmeter)

1. Set an ohmmeter to continuity (beep) mode.

2. Touch one probe to the ear‑side access point inside the front cover.

3. Touch the other to another point on the shield layer.
   Beep = continuous conductive path. No continuity means the flap is not acting as a conductive shield.

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About claims and testing (what to look for)

• Look for whole‑device testing (phone in the case) with clear orientation and bands tested.

• “FCC‑accredited lab” describes the lab’s status; the FCC does not certify passive cases to reduce exposure.

• Be wary of single “up to 99%” numbers from materials tests that do not include a phone in normal operation.

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Why this matters

• Poor case design can reduce antenna efficiency; the handset responds by increasing transmit power.

• That means higher RF emissions from the phone in use—opposite of the intended outcome.

• A good case reduces exposure when used as instructed; it does not fix public‑policy issues or replace prudent habits.

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Plain‑language summary

• Remove metal near antennas.

• Keep the shield between you and the phone during calls and carry.

• Avoid bulk and detachable magnet systems.

• Verify continuity of the shield layer.

• Follow usage instructions each time.

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Required disclaimer

QuantaCase is a mitigation accessory intended to reduce exposure when used as directed. It is not a medical device and is not intended to diagnose, treat, cure, or prevent disease.