Features: 1RF Wireless Technology: RF wireless technology, stable system, long wireless receiving distance, 30 level digital control volume adjustable 2Support 400 Pagers: Wireless guest pager display receiver supports 400 pagers, supports single button or 4 button pagers 3Named Call Button: Restaurant wireless paging system can name the call button starting with ABCDEF letters, and can display the time, year, month and day 4Reliable and Stable: Wireless guest pager adopts advanced micro processing chip to make its performance stable and reliable, call button word can be selected, single or list display mode 5Applicable Scenarios: Used in various places such as homes, hotels, bars, restaurants, factories, workshops, tea houses, clubs, bowling alleys, massage rooms, churches, country clubs, hospitals, health clubs, and offices Package included: 1 x Display Receiver 40 x Button Launchers 40 x Film 1 x User Manual 1 x Adapter