***** **********Best Quality Guranteed. *****Using T115 queue wireless calling system can decrease annoyance of customer waiting in the queue in food truck; fast food restaurant; coffee bar; store; hospital; clinic*****2 Beeper modes for the pager system; vibration buzzer and flash; vibration and flash; long enough prompt time adjustable from 10-50s; vibrate only without beep for quiet environment such as church nursery; library; cafe; hospital; clinic*****1640ft paging rang at open area without interference from other pager system; no need to clean paired number; 200mAh rechargeable lithium battery can use about 20h after full charged*****The restaurant pager system supports multiple guest pager system transmitters to call the same restaurant pagers; 1 transmitting host can also call multiple pagers at the same time; make your work more flexible and convenient*****Touch keyboard; operation is more sensitive; easy to clean and safer to use