Feature: 1. 3 Reminder Modes: The cordless calling system offers vibration, beep, and flashing alert modes for versatile notification options. When background music is playing, customers can opt for the vibration and flashing mode to ensure they are promptly reminded. 2. Extended Range: Utilizing advanced frequency modulation technology, the restaurant buzzer system operates at a distance of over 1640 feet, enabling customers to wait in spacious areas or even in their vehicles without missing their turn. 3. Convenience And Efficiency: The restaurants paging system allows users to view the ten most recent call records, making it convenient to identify which customer may have missed their call or notification. 4. Self Install High Capacity Battery: Each coaster pager is equipped with a built in 200mAh rechargeable battery, providing up to 24 hours of standby time. Customers can easily replace the battery themselves for uninterrupted service. 5. Good Stability: The restaurant pager system features a large volume, longer charging dock, and easy, stable charging process to ensure dependable performance. The secure design prevents accidental detachment during charging, offering peace of mind for restaurants and customers alike. Specification: Item Type: Restaurant Pager System Material: ABS, Electronics Main Machine Transmitting Frequency: 433.92MHz Transmitting Distance: Approx. 500m / 1640.4ft Number of Charging Units: 16 Number of Compatible Units: Up to 998 Key Mode: Touch key Sub Machine Receiving Frequency: 433.92MHz Receiving Sensitivity: -108dBm Transmitting Distance: 500m Standby Time: 24 Hours Prompt Mode: Vibration, Buzzer, Flash Reminder Duration: 1-999 Seconds Adjustable Single Unit Battery Type: Built In 200mAh Polymer Li Battery (Included). Package List: 1 x Main Unit 16 x Restaurant Pagers 1 x Adapter 1 x Manual