Feature 1Wide Coverage Area: With a coverage area within 500 meters. Guest can sit and relax anywhere, or even take a stroll nearby, while waiting for their order to be ready. 2Easy To Use: Featuring a simple and intuitive interface, the touch keyboard allows for quick and easy programming of the order display. This improves service efficiency and saves time. 3Waterproof And Oil Resistant Properties: With waterproof and oil resistant properties, this device is perfect for providing reliable service in any demanding environment. The vibration, buzzer, light flashing notification modes make it easy to tell when an order is ready. 41 Transmitter to 20 Receivers Configuration: With a 1 to 20 configuration, your customers can order at their convenience and take a seat while they wait, rather than standing in line at the counter. 5Durable: Made from impact resistant ABS, PC, restaurant pager system not only looks sleek and stylish but also offers long lasting durability.Item Type: Restaurant Pager Material: ABS, PCWeight: Approx. 1607g / 56.7ozBase Size: Approx. 273x154x30mm / 10.7x6.1x1.2inPager Size: Approx. 102x52x12mm / 4.0x2.0x0.5inBattery: DC3.7v Lithium Ion Battery 200mah (Receiver With Built In Battery)Frequency Band: 433MHz Power Supply: DC12VQuantity: 1 Transmitter To 20 Receivers Display: 3 Digit Digital Tube DisplayAlert Methods: Vibration, Buzzer, Light FlashingApplication: Suitable For Restaurants, Bars, Cafes, And Other Queueing Areas .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Keypad Queue Number Call20 x Pager Buzzers1 x Instruction Manual1 x Plug