10PCs Coaster Pager System Wireless compatible with Restaurants 110?240V US Plug

Features: 1.RF Wireless Technology: Using radio frequency wireless technology, the system is stable, and the wireless receiving distance is long 2.Display Receiver: The display receiver supports 400 pagers, supports single button or 4 button pagers 3.Button Transmitter: Call button word selectable, single or list display mode, can name the call button starting with ABCDEF letters 4.Characteristics: The 30 level digital control volume is adjustable, and it can display the time, year, month, and date It has a stylish appearance and is easy to move 5.Uses: Using advanced microprocessor chip, the percompatible withmance is stable and reliable Widely used in hotels, bars, restaurants, etc specification:Item Type: Restaurant Pager System Material: ABS Display Receiver Parameters: Operating Frequency 433.92mhz Working Voltage: DC 5V Working Current: