This is a working Authentic Vintage USA Mobility Pager with belt clip case.  This classic device that started 'The Remote Communications"  revolution is tested and it works great.  Even though you probably cannot get it working as an actual pager with a phone number, you can set timers and alarms to show off  to your friends or co-workers.  This is a true classic in great condition and includes the original classic belt clip that allows you to see the screen while in the holster.