The GP-30-S base transmitter supports up to 30 pagers. Powerful 4-watt, low-band FM, 27 MHz transmitter has a range up to 1 mile (range may vary depending on conditions). Host can instantly notify guest when table is ready. Silent notification maintains pleasant dining atmosphere. Improves customer service and allows faster table turns. The GP-30-S can be expanded to support up to 60 pagers when using the GP-60-XP extend panel. The GP-CP-KIT comes with 1 GP-30-S base transmitter and 5 GP-CP-01 coaster pagers. The GP-CP-01 coaster pager vibrates and flashes colored lights to let guests know when table is ready. Service button flashes lights in a different pattern, informing bar staff that a waiting guest would like service. Includes space for your restaurant logo. Powered by two AAA batteries (not included), no charging rack is required. Pagers can be programmed on site.