Phones communicate with radiofrequency (RF) energy in the microwave bands. Accessory design mistakes can cause a phone to increase its transmit power automatically to keep a connection—raising your RF radiation exposure. A TruthCase™ is built to lower exposure in real use without provoking that auto‑increase.
| Misleading Marketing | First‑Principles (TruthCase™) | |
|---|---|---|
| Headline claim | “99% protection everywhere” | Lower exposure depends on use: shield placed between you & phone, with clear instructions |
| Hardware choices | Metal loops, magnet plates, 360° foil wraps | No metal or magnets near antennas; thin build; antenna areas unobstructed |
| Effect on the phone | Can cause an automatic transmit‑power increase | Helps the phone maintain lower transmit power for the same connection |
| Speaker area | Large unshielded hole near ear | Shielded speaker aperture—audio clarity without a gap in protection |
| Evidence offered | Fabric attenuation “percent” only | Focus on device behavior and near‑body exposure in real use |
| User guidance | Vague or absent | Clear placement & habits to reduce exposure: calls, pocket, nightstand |
Place the shielding layer between your body and the phone. Full wraps can backfire by disrupting antennas.
Avoid metal loops, magnet plates, and thick stacks that obstruct antennas. Keeping antennas efficient helps the phone use lower transmit power.
More distance reduces RF intensity. Use speaker/wired options, smart pocket carry, and nightstand discipline.
Metal near antennas can detune the system and trigger an automatic increase in transmit power.
“Mount‑ready” plates obstruct the antenna’s view and often cause the phone to boost output to stay connected.
A large aperture near the ear canal allows higher‑frequency signals (e.g., 5G bands) to pass with less reduction.
“99%” from a fabric swatch is not your real‑world exposure. Exposure depends on orientation, antenna performance, usage, and duty cycle.
If two or more are true, the case likely increases exposure.
Good: No obvious exposure multipliers; the phone can maintain lower transmit power.
Caution / Fail: One or more multipliers likely cause an automatic transmit‑power increase. Consider a different case.
Goal: directional shielding in use, unobstructed antennas, and distance‑smart habits.
RF (microwave) radiation reduction isn’t a slogan; it’s a design you can verify.
Reality: Real exposure depends on orientation, antenna performance, usage, and duty cycle—not a fabric number.
Reality: Metal near antennas can cause the phone to increase transmit power to maintain a link.
Reality: Full wraps can obstruct antennas and lead to higher output. Protect the person by placement, not by smothering the radio.
Organize a local push (Li‑Fi pilots, better guidance) and contact representatives about modernizing RF policy.
Customize the bracketed items. This is a civic letter (not legal advice).