1、[Restaurant Pager Calling System] Includes 1 keyboard transmitter and 30 coaster pagers, each with built in rechargeable lithium battery, low battery indicator, and charging indicator for convenient use. 2、[Multi Prompt Modes] Features vibration, sound, and light notifications, offering a variety of alert options that can be easily switched between. 3、[Professional Chipset] Utilizes imported processing chipset with high performance noise reduction encoding and decoding circuit, fast heat dissipation, strong stability. 4、[Large Capacity Support] The wireless calling system supports up to 999 coaster pagers, catering to diverse needs in various settings. 5、[Wide Application] Suitable for use in fast food restaurants, dining halls, etc., the wireless calling system provides convenience for queuing and customer paging processes. Item Type: Restaurant Pager Calling System Material: PCB Keyboard Transmitter: Working Voltage: DC12V Working Frequency: 433.92MHz Working Current: 200±30mA Standby Current: 60±10mA Encoding Method: Learning Code Size: Approx. 15.5x11.5x7cm / 6.10x4.53x2.76in Coaster Pager: Working Voltage: DC3.7V Charging Voltage: DC5V Working Frequency: 433.92MHz Working Current: 70±20mA (Buzzer), 100±20mA (Vibration), 120±20mA (Vibration+Buzzer) Standby Current: <14±3mA Decoding Method: Learning Code Battery Type: Lithium Battery Single Receiver Battery Capacity: 300mAh (Included) 1 x Keyboard Transmitter 30 x Coaster Pager 3 x Supply Adapter 3 x Charging Dock 1 x User Manual