Feature:1. Touch Control: This wireless calling system adopts touch panel and touch control, which ensures more accurate operation and long service life.2. 3 Calling Modes: This restaurant pager system provides 3 calling modes, including vibration, buzzer and flash.3. Wireless Transmission: This pager system controls 20pcs pagers, and you can easily add up to 998 pagers.4. Wide Application: This pager system is suitable for fast food restaurants, food courts, pizza parlors, churches and auto shops or other places.5. Wide Coverage: Within 500 meters, this wireless calling system features efficient connection.Specification:Item Type: Wireless Calling SystemMaterial: Plastic, ElectronicInput Power: DC12V/1.5ATransmission Frequency: 433.92MHzTransmitting Power: +23dBMNumber of Charging Pagers: 20Maximum Number of Pagers: 998Button Mode: Touch KeyThe Pagers:Operating Voltage: Lithium Battery 3.7V 200mAhReceiving Frequency: 433.92MHzStandby Time: 24hReception Sensitivity: -108dBMTransmission Distance: 500 MetersPrompt Mode: Vibration/Buzzer/FlashReminder Duration: 1 to 999 Seconds Can Be SetBattery Type: Inbuilt 200mAh Lithium BatteryApplicable Voltage: 100 to 240V.Package List:1 xWireless Calling System1 x Power Plug20 x Pagers1 x Antenna1 x User Manual