1、3 ALERT MODES: With 3 reminder modes, vibration, buzzing and flashing light, customers will never miss their alert. When there's music on site, you can choose vibration plus flashing mode to better remind customers. 2、LONGER RANGE: Adopt advanced frequency modulation technology, the paging system works up to 1640 feet. Convenient for customers waiting in open areas or vehicles. 3、CONVENIENT AND EFFICIENT: Restaurant paging system can view the last 10 call records, easily identify which customer missed the call, offering a better dining experience to visitors. 4、LARGE CAPACITY BATTERY: Each restaurant calling pager comes with a built in 200mAh rechargeable battery, ensuring a standby time of up to 24 hours, giving you reliable applications. 5、STABLE AND RELIABLE: The large size of the restaurant buzzer and extended charging dock ensure easy and steady charging. The buzzer stays securely in place during charging and doesn't get knocked loose. Item Type: Restaurant Pager System Material: ABS, Electronic Main Unit: Input Power: DC12V 2A Transmitting Frequency: 433.92MHz Transmitting Distance: Approx. 500m / Approx. 1640ft Charging Slots: 16 Number of Compatible Pagers: 998 Keypad Mode: Touch Button Sub Unit: Receiving Frequency: 433.92MHz Receiving Sensitivity: -108dBm Transfer Distance: Approx. 500m / Approx. 1640ft Standby Time: 24 hours Reminder Mode: Vibration, Beep, Flashing Reminder Duration: 1-999 seconds Single Unit Battery Type: Built in 200mAh Polymer Lithium Battery (included) 1 x Main Unit 16 x Sub Unit 1 x Main Unit Antenna 1 x Adapter 1 x User manual