***** **********Best Quality Guranteed. *****8 Broadcast types for TD101 number calling system meets your multiple needs; larger LCD screen; easy to read even at a distance; calling records cycle time is adjustable; 1-99 times calling optional; no worry about customers miss the calling*****Screen receiver can be fixed on the wall by suspension grooves; also can stand on the table; up to 100m or 328 ft in open area; 30-50m or 100-165ft in obstacle field; is suitable for restaurant; food court; 4S store; bank; factory; shopping mall; cafe; food truck; clinic or other queue and noisy occasions*****Double loudspeaker for the restaurant calling system; more clear voice; 10 level adjustable; also support any 3.5 mm jack sound; which can enlarge the broadcast; no need to worry about that customers cannot hear the page sound; both screen receiver and call buttons custom quantity*****Waterproof and oil resistant integral keyboard; no button gap between call buttons can avoid be corroded; additi