waiter calling button ?pager MMC-2610E3 is a 3-key wireless transmitter with the function of CALL, BILL,CANCEL. A seperate service bell is not a complete call system. It is compatible with all MMcall paging hosts?and displays. ? MMcall in the South America : ? MMCall in the Thailand :? ? ? How the?customer calling pager?system works: ? Threre are two different waiter call systems: ? 1) Waiter call pager system: it includes paging host, waiter call button and pager. Each waiter call button is installed at desk?or room for customer to call the waiter. The pager is for waiter to receive the information at anytime and anywhere. The paging host can be installed in at the reception desk for receiving and transmitting the signals. ? 2)Waiter call display system: it incudes paging display and waiter call button. Each waiter call button is installed at desk or room for customer to call the waiter. The paging display can be installed at the hall or reception desk for waiter to view the customer calling. ? Waiter call display system is suitable for small places like coffee bars, restaurants etc. whereas waiter call pager system is suitable for large places like hospitals, shopping malls, univerisities etc. ? ? ? ? Waiter call button features: ? Frequency: 433.5MHZ/315.6Mhz 1.Weight: 0.05KG 2.Color: Black,Wooden 3.Material: ABS (the crust), sticker (the button) 4.Power supply: one 23AE 12V batteries 5.Battery life: ≥15000H 6.Transmit Power: 10mw 7.Transmit Distance: 350m (open air) 8.Dimension: 6*6.7*2.0CM Works with all MMcall hosts and displays Optional: Button stand (HY-S101/HY-S108/HY-S110/HY-S600)