It is a wireless receiver device dedicated to pager systems for waiters and service providers in restaurants, cafes, clinics, and hotels. The watch has the following basic specifications: Water Resistance: Comes with IPX7 water resistance standard, meaning it can be safely worn while washing hands or when liquids are spilled. Pairing Capacity: Supports pairing and connection with a large number of buttons (up to 500 or 999 channels depending on the version). Notification Methods: Supports vibration, sound, or light alerts. Display and Languages: Equipped with a dedicated display screen and supports 7 basic languages. Battery: Lithium battery lasts for more than 72 hours in standby mode. Range: The range reaches more than 80 meters in open areas, and can be doubled using a signal repeater.