We have Faraday Radio Frequency RF shield nylon bags in stock. Faraday bags can be very useful during development when you want to bring beacons in and out of range or need to hide development beacons. They are also useful during setup when you want to shield un-commissioned beacons temporarily.
The bags we sell are high spec and were originally designed for military, intelligence and police agencies to prevent seized devices from being remotely altered. They shield WiFi, Bluetooth and phone signals. They can also be used with phones and tablets for personal anti-radiation health reasons, preventing tracking or avoiding communication when you don’t want to be interrupted.