This Wireless Calling System adopts imported processing chipset, it's very popular in the restaurant.Features:1. It's convenient for customers, customers can rest in the empty space after ordering, they don't have to wait in line at the bar.2. The emission distance of the Queuing Wireless Calling System is very long, customers can sit anywhere in the store, you can also stroll around, waiting for the calling system to remind you to take the meal.3. The Queuing Wireless Calling System is made of ABS engineering plastic material, it has military quality, exquisite workmanship, durable and resistant, and long service life. It also can help you save shop costs.4. The appearance of the disc Calling System is stylish and fashionable, so that the customers not only enjoy the meal, but experience the enjoyment of high-tech dining, the satisfaction of being respected.5. Other restaurants have gradually used this Queuing Wireless Calling System, if you still do not keep up with the trend, it is equal to regress.Specification:Keyboard transmitter:Size: Approx. 150 x 115 x 70mm/ 5.91 x 4.53 x 2.76inchWorking voltage: DC12VWorking frequency: 433.92MHZWorking current: 200mA30mAStandby current: 60mA10mACoding method: Learning codeReceiver:Color: BlackSize: Approx. 80 x 80 x 10mm/ 3.15 x 3.15 x 0.39inchWorking voltage: DC3.7V (rechargeable battery)Charging voltage: DC5VWorking frequency: 433.92MHZWorking current: 7510mAStandby current: 10mA5mADecoding method: Learning codeBattery capacity: 200mAhVoltage: 100-240VFunction: It can only charge, bottom power prompt, online search, vibration, sound, light rotation, free to switch prompts, maximum support 999 discs.High-end professional processing chip: adopt imported processing chipset, high-performance noise reduction coding and decoding circuit, fast heat dissipation and strong stability.Package List:1*Keyboard Transmitter10*Receivers1*Charging Base2*Power Adapters 1*ManualNote: The receiving distance of the partition wall is 50-100 meters, and the receiving distance of the open space is 1500 meters (you can add a signal intensifier if it can't reach the distance.).