Large-capacity restaurant buzzer pagers; TD175P 30 pagers; TD173 20 pagers; the transmitter keyboard has many charging card slots, and additional restaurant vibrating buzzers can be continuously added to meet the needs of business growth;7 prompt modes; vibration/beep/light can be combined according to customer needs; only vibration is suitable for quiet environments;the wireless pager system prompt time is adjustable from 1-999s;Long service time; TD175P pager system has a built-in 200mAh lithium battery; standby for about 15 hours; TD173 restaurant buzzer 24 hours; can meet your use in a day's work;Increase customer satisfaction; after placing an order and receiving a menu, you can walk around, chat, go to the toilet, and don't have to worry about missing your meal;Improve customer service; whether it's a cold winter day or a hot summer day, customers can find a comfortable place to wait without worrying about the weather