These are New Motorola BR850 900 Flex Numeric Pagers. Shipped with USPS First Class.
2 Black & 2 Jade Green
Pager can be set to your Paging Co Freq & CapCode they assign you for an additional $10. See below
My Pager Programming Svc on Ebay:
https://www.ebay.com/itm/294689035885