Feature: 1. Efficient Work: Professional 999 channels call keypad transmitter and 20 discs, enhance the work efficiency, avoid the client waiting for a long time. 2. Powerful Function: Restaurant disc receiver's lithium battery is built in, supporting vibration, sound, light rotation and other prompting methods, the distance is as far as 1000 meters. 3. Professional Processing Technology: Disc receiver adopts imported processing chipset, high performance noise reduction coding and decoding circuit, strong stability and fast heat dissipation. 4. Flexible Application: Restaurant pager system is widely used in fast food restaurants, food courts, pizza parlors and other places with high customer flow to improve customer experience. 5. Convenient Charging: Professional disc receiver adopts lithium battery, support USB charging, capacity 300mAh, convenient and practical. Specification: Item Type: Restaurant Pager System Material: ABS Keyboard Transmitter: Operating Frequency: 433.92MHZ Operating Current: 200±30mA Standby Current: 60±10ma Coding Mode: Learning Code Disc Receiver: Operating Voltage: DC 3.7V (Rechargeable Battery) Charging Voltage: DC 5V Operating Frequency: 433.92MHZ Operating Current: 70±20mA (Buzzer) 100±20ma (Vibration) 120±20ma (Vibration + Buzzer) Standby Current: