Pyramid"s TimeTrax Sync Wireless "Clocks in a Box" bundle is all you need to get your facility clocks working on the same time. This pre-engineered solution will get your facility up and rolling quickly at an affordable price. For convenience, everything you need is all in one box. The dependable 902-928 frequency-hopping technology transmits a signal to the wireless system clocks. "Clocks in a Box" is the ideal starter solution for synchronized timing needs for all building types under 50,000 sq. ft. (larger building accommodations available upon request). The system time source is NTP with optional GPS. Bell scheduling is also available making the "Clocks in a Box" the perfect starter solution for all your synchronized timing needs.