Feature: 1. 30 Pagers: This customers pager system contains 30 pagers and 1 keypad call, you can always add more pagers to the system as your business grows. 2. 3 Prompt Modes: This restaurant pager system provides 3 prompt modes, including vibration, sound and flash that can be freely switched. 3. Wide Application: This pager system is suitable for fast food restaurants, food courts, pizza parlors, churches and auto shops or other places. 4. Long Receiving Distance: This wireless calling system provides 50 to 100 meters/164 to 328ft receiving distance among wall, maximum 800 meters/3280ft in open area. 5. Rechargeable Battery: Each pager is designed with inbuilt rechargeable battery, with indicator of low battery and charging, offering more convenience. Specification: Item Type: Customers Pager System Material: ABS Receiver: Operating Frequency: 433.92MHz Standby Current: 10??5mA Working Current: 75??10mA Receiving Sensitivity: Minus 107??2dBm Battery Type: Lithium Battery Battery Model: 502030 Battery Capacity: 200mAh (Inbuilt Battery) Decoding Mode: Studycode Transmitter: Operating Frequency: 433.92MHz Working Current: 200??30mA Standby Current: 60??10mA Encoding Method: Studycode Size: Approx. 120 x 80 x 30mm / 4.7 x 3.1 x 1.2in ( Manual Measurement, Slight Error May Exist ) Operating Temperature: Minus 10?? to 60??. Package List: 1 x Power Adapter1 x One for Three Power Adapter1 x Transmitter30 x Receiver1 x User Manual3 x Charging Base