Feature: 1. LONG RANGE COVERAGE: Utilizing advanced frequency modulation technology, our restaurant paging system can work up to 2625 feet away, allowing customers to wait in open areas or even in their vehicles 2. CUSTOMIZABLE ALERT MODES: With vibration, beep, and flash options, our restaurant pagers offer versatile alert modes to suit different environments. For instance, choose vibration and flash mode when music is playing on site for enhanced customer notification 3. CONVENIENCE AT YOUR FINGERTIPS: The restaurant pager system keeps track of the last 10 calls, making it easy to see which customers may have missed their call. This feature ensures a quick and efficient dining experience for both staff and patrons 4. EXTENDED BATTERY LIFE: Each restaurant pager comes with a built in 200mAh rechargeable battery, providing up to 20 hours of standby time. Customers can rest assured that the pager will be ready for use throughout their visit 5. STABILITY AND DEPENDABILITY: Our restaurant pagers feature larger sizes for easy handling, longer charging docks for added stability, and a secure charging connection to prevent disconnection. Specification: Item Type: Restaurant Pagers Material: ABS+Electronic Main Unit: Input Power: DC12V/2A Transmission Frequency: 433MHz Transmission Distance: 800m / 2625ft (open area) Charging Sub Unit Number: 20 Compatible Sub Unit Number: 998 Key Mode: Touch sensitive keys Sub Unit: Reception Frequency: 433MHz Reception Sensitivity: -108dBm Transmission Distance: 800m / 2624.7ft (open area) Standby Time: 20 hours Alert Modes: Vibration/Beep/Flash Reminder Duration: 1-999 seconds adjustable Individual Sub Unit Battery Type: Built in 200mAh polymer lithium battery (included) Voltage Compatibility: 100-240V. Package List: 1 x Main Unit 20 x Sub Unit 1 x Adapter 1 x User Manual