Feature: 1. Versatile Alert Options: The wireless pager system features 3 different alert modes of flashing, vibration and beeping, allowing you to choose the best way to grab your customers' attention without disturbing other patrons. 2. Long Range Connection: The pager utilizes advanced FM technology to provide a working range of up to 1640 feet, allowing your guests to wait in their cars or other spacious areas without missing their turn. 3. Recent Calls Checking: Capable of storing last 10 call records, the beeper system allows you to check which customers may have missed their calls and need to be contacted again. 4. Long Lasting Power: The cafe pager system comes with built in 200mAh rechargeable battery, providing up to 24 hours of standby time, ensuring the system is always working, even during the busiest business hours. 5. Easy and Secure Charging: The restaurant pagers is designed with an oversized volume and extended charging dock for easy and stable plug in, preventing any potential disconnection during charging process. Specification: Item Type: Restaurant Pager Buzzer System Main Unit: Input Power: DC12V/2A Transmission Frequency: 433.92MHz Transmission Distance: Approx. 500m / 1640ft Connectable Sub Units Number: 998 Key Mode: Touch Sensitive Keys Sub Unit: Receiving Frequency: 433.92MHz Receiving Sensitivity: -108dBm Transmission Distance: Approx. 500m / 1640ft Standby Time: 24 Hours Reminder Modes: Vibration, Beep, Flash Reminder Duration: 1-999 Seconds Adjustable Single Sub Unit Battery Type: Built in 200mAh Polymer Lithium Battery (Included) . Package List: 1 x Main Unit 30 x Sub Unit 1 x Main Unit Antenna 1 x Adapter 1 x User Manual