30L Waterprrof Faraday Backpack that can fit any of your electronics including laptop, keyboard, mouse, fob, etc. This backpack will shield against Wifi (2.4 & 5Ghz), Bluetooth, Phone Signals (5G network included), RFID, GPS & Radio signals providing maximum emp protection to your devices. This is a great backpack for students as they can be protected against these harmful signals generated from these electronic devices. The backpack is made with high quality material and is designed for military, law enforcement, forensic investigators and even regular business employees.