Feature 1Practical to Use: Wireless guest paging queuing system is convenient for guests, guests can go to the vacant seats to rest after ordering, without waiting in line at the bar. 2Long Range: The host external antenna partition wall of the restaurant wireless calling system has a receiving distance of 50100 meters, and the working distance of the open area is about 800 meters (3280 feet). 3Premium Material: Restaurant wireless calling system is made of ABS engineering plastic, military quality, exquisite workmanship, durable and resistant to falling, long service life. 4High Performance: Restaurant wireless calling system adopts imported processing chipset, high performance noise reduction encoding and decoding circuit, fast heat dissipation and strong stability 5Multifunction: Each pager has built in rechargeable lithium battery, low battery indicator, charging indicator, learning word registration mode, online search, vibration, sound, light flashing, can be switched at will, up to 999 quadrate disks. 6Wide Scenes: Wireless guest paging queuing system is suitable for restaurants, bars, cafes and other places that need to queue.Item Type:WirelessGuestPagingQueuingSystemMaterial: ABSParameter:Disc Receiver:Working Voltage: DC3.7V (Rechargeable Battery)Charging Voltage: DC5V Working Frequency: 433.92MHZStandby Current: 105mAOperating Current: 7510mAReceive Sensitivity: -1072dBmBattery Type: Lithium BatteryBattery Model: 502030Battery Capacity: 200mAh (Included)Decoding Method: Learning WordKeyboard Launcher:Working Voltage: DC5VWorking Frequency: 433.92MHZOperating Current: 20030mAStandby Current: 6010mAEncoding Method: Learn WordSize: Approx. 120x80x30mm / 4.72x3.15x1.18inWorking Temperature: -10C-60C .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 Power Adapter1 x Transmitter20 x Receiver1 x Instruction Manual2 x Charging BaseNoteManual measurement please allow some error.