Given the importance of speed and order in servicing, wristband pager WRC-200 can be used for attending to customers’ needs quickly. When the customer presses the pager button and determines the order type, the wristband begins vibrating and the order information is displayed on it. Using this product, you can call waiters in restaurants, dining-rooms and cafes based on order type. Other applications include summoning nurses in hospital, calling the security staff in stores and malls and summoning a specific employee such as a janitor. It can also be used in clinics, nursing homes, offices, factories, hotels and any other place that requires a calling system. This product is waterproof and can be used in humid environments.