APE6900 and APE520 are designed for reliable, efficient, and userfriendly communication in service environments. Both models combine durability, functionality, and ease of use to help improve operational efficiency and customer experience. APE6900 Key Features and Benefits: Waterproof construction ensures dependable operation even in wet or humid environments. Builtin calendar, clock, and alarm clock functions provide convenient time and schedule management without the need for extra devices. Rechargeable battery with up to 5 days of standby time reduces downtime and maintenance. Fast delete function allows quick removal of a single registered number or all registered numbers with one button press, saving time during reconfiguration. Supports downloading of registration information via included charging and software connection, making setup fast and simple. Encryption function prevents accidental data loss caused by incorrect operations, keeping user information secure. contrast OLED display offers improved readability in various lighting conditions, with a thinner, lighter, and more shockresistant build for enhanced durability in daily use. APE520 Key Features and Benefits: Compact flexible square design measuring 3.39 x 3.39 inches with an oversized 2inch diameter round button for easy operation. Large, visible button enhances accessibility for quick and accurate pressing in busy or lowlight conditions. Sensitive touch response ensures calls are registered instantly, minimizing wait times and improving service efficiency. Practical Applications: Restaurants can use the devices for efficient waiter call systems, enabling quick response to customer requests. Hospitals or clinics can employ them for nurse call systems to ensure timely patient care and assistance. Industrial or warehouse environments can implement them as a reliable communication tool for coordinating tasks in noisy or spreadout work areas. These models provide a professional, userfocused solution for settings where fast, clear, and dependable communication is essential.