SYB Phone Pouch — Product verdict
SYB (Shield Your Body) · tested 2026-09-07
BackfiresClaim on the box: “Powerful radiation blocker for cell phone; durable anti-radiation case / pouch. Fits phones up to 4.33 in wide.”
| Measured at | 3ft |
| Operating mode | Max load |
| Meters used | GQ EMF-390, TriField TF2, ERICKHILL 3-in-1 EMF Meter |
Phone transmitting (call/hotspot). Meter on the body side of the pouch vs the open side, then phone out of the pouch. Same distance, three repeats, all 3 meters. Note if bars drop. Directional shield, not a Faraday bag.
Baseline is the source with the product removed. With product is the same setup after the product is added. Each lab meter (GQ EMF-390, TriField TF2, ERICKHILL) gets its own pair. Measured change on this page is the median of those percent drops — we do not mix raw readings into one number. Thresholds and the full paired protocol are on How We Test.
Browse published product tests, or read how we run the paired test.
More Shielding Cases & Pouches verdictsAll Test ResultsHow We TestResults are informational and specific to the documented test setup. EMF levels vary with distance, signal strength, operating mode, and environment. Educational content, not medical advice.