2019 Wireless Calling System Customers Call Buttons Coaster Pager for Restaurant Food Court Truck Cafe Shop - 2 pcs Waterproof Watches and 10 pcs buzzer light vibrate button - Long Range Paging System

We received the item today and it comes with instruction but its not so detailed. Anyone who buys this product you must check youtube for instructional video to set up first. Over all review is its working properly according to its purpose, delivery is earlier than expected date, the amazon customer service is helpful and fast for replying me. Its just that at first its confusing to use.