The M-28 UR-DED is a remote explosive developed by Steiner-Bisley GmbH . It is the next-generation iteration of the venerable Satchel charge. The M-28 UR-DED consists of 273 grams of blue liquid nano explosive wrapped in a transparent package that can adhere to any surface and a wireless remote trigger. The user can detonate the package with radio remote trigger or using either direct fire-targeting. This explosive can work alone or being slaved to other M-28s.