Cokaymi 1 Pack Faraday Bags for Phones, Car Key Fobs & Electronic Devices - Privacy Protection Pouch Blocks 5G, WiFi, Bluetooth, GPS and RFID Signals, Durable & Portable Anti-Tracking Design（Green）

[Advanced Signal Isolation] Constructed with dual-layer shielded metallic fabric and a double-fold closure design, this bag effectively blocks 5G, Bluetooth, Wi-Fi, GPS, and RFID signals, helping protect your devices and maintain privacy.

[Reflective & Writable Marker Strip] Features a reflective strip that improves visibility in low light. The strip can also be written on with a marker for easy identification and organization.

[Easy Self-Verification Test] Place your phone inside, fold the closure twice, and press firmly to secure the hook-and-loop seal. Use another phone to call the device inside—if the call does not connect, the bag is working properly. (If a connection is made, reseal and retest.)

[Durable & Protective Build] Made with a secure hook-and-loop seal and a silicone-coated exterior that offers water-resistant and flame-retardant properties, helping shield contents from everyday exposure.

[Compact Multi-Use Size] Measures 10.24 x 4.92 inch, offering a practical fit for smartphones, car keys, ID cards, and payment cards. Helps reduce unintended signal transmission and data skimming risks.