Frequently Asked Questions
How much radiation do SYB phone pouches actually block?
SYB phone pouches block up to 99% of cell phone radiation on the shielded side. Independent laboratory testing verifies this performance across frequencies up to 20 GHz, including 5G bands. We publish all test results on our website.
Will my phone still work inside an SYB phone pouch?
Yes, your phone functions normally inside an SYB phone pouch. The pouch shields one side while allowing signals through the other. You receive calls, texts, and notifications without interruption—only radiation directed at your body is blocked.
What sizes of phones fit in SYB phone pouches?
SYB phone pouches accommodate most smartphones including iPhone and Android models. The standard pouch fits phones up to 6.7 inches. Check individual product dimensions to confirm your phone model fits before ordering.
What is the difference between SYB phone pouch styles?
The original SYB Phone Pouch provides one-sided EMF shielding for daily carry. The Deluxe version offers complete faraday isolation that blocks all signals. Choose based on whether you need radiation reduction or full signal blocking.
How do I know SYB phone pouches really work?
Every SYB phone pouch includes published laboratory test reports showing measured shielding effectiveness. You can also test at home—place your phone in the Deluxe pouch and watch your signal bars drop to zero within seconds.




