Feature: 1. Practical 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. 2. Long Range: The host external antenna partition wall of the restaurant wireless calling system has a receiving distance of 50‑100 meters, and the working distance of the open area is about 800 meters (3280 feet). 3. Premium Material: Restaurant wireless calling system is made of ABS engineering plastic, military quality, exquisite workmanship, durable and resistant to falling, long service life. 4. High Performance: Restaurant wireless calling system adopts imported processing chipset, high performance noise reduction encoding and decoding circuit, fast heat dissipation and strong stability 5. Multifunction: 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. 6. Wide Scenes: Wireless guest paging queuing system is suitable for restaurants, bars, cafes and other places that need to queue. Specification: Item Type: Wireless Guest Paging Queuing System Material: ABS Parameter: Disc Receiver: Working Frequency: 433.92MHZ Standby Current: 10±5mA Operating Current: 75±10mA Receive Sensitivity: -107±2dBm Battery Type: Lithium Battery Battery Model: 502030 Battery Capacity: 200mAh (Included) Decoding Method: Learning Word Keyboard Launcher: Working Frequency: 433.92MHZ Operating Current: 200±30mA Standby Current: 60±10mA Encoding Method: Learn Word Size: Approx. 120x80x30mm / 4.72x3.15x1.18in Working Temperature: -10°C-60°C. Package List: 1 x Power Adapter1 x Transmitter20 x Receiver 1 x Instruction Manual2 x Charging Base Note: Manual measurement please allow some error.