Yondr bag

Yondr is a company founded by Graham Dugoni in 2014 that makes a hand-sewn pouch, often called a Yondr bag or Yondr pouch. The pouch allows courts, schools, and other locations to create phone-free spaces by placing mobile devices in a Faraday container, which prevents them from receiving calls or text messages.

The bag also has a locking mechanism (shown), preventing users from retrieving their smartphones from the container, while still allowing them to keep their device with them. If a user needs to use their phone, they have to leave the phone-free space and have the bag unlocked.

Faraday cage, Phone terms