Enhance communication efficiency with this advanced Wireless Calling System, designed for stable, long-distance performance and versatile applications. Utilizing high-performance wireless technology, this system offers strong anti-interference capabilities and reliable signal transmission over distances exceeding 200 meters (656 feet), making it ideal for a variety of environments including homes, hotels, restaurants, bars, factories, coffee shops, and nursing homes. Key Features: · Stable Long-Distance Communication: Equipped with a high-sensitivity receiver and operating at 433.92MHz frequency, this wireless calling system ensures clear and uninterrupted paging signals with excellent anti-interference performance. · Wide Range of Applications: Perfectly suited for diverse settings such as hospitality, healthcare, industrial sites, and personal use, improving communication and service efficiency across multiple scenarios. · Stylish and Portable Design: The receiver display features a modern and fashionable look that complements any environment, while the compact call keys are lightweight and easy to carry, allowing calls to be made anytime and anywhere. · User-Friendly Operation: The receiver clearly displays time, year, month, and day, enabling accurate call time tracking to boost work efficiency and simplify management. · Waterproof and Durable: Both the display receiver and call keys boast an IPX4 waterproof rating, ensuring reliable performance even in wet or humid conditions. · Comprehensive Package: Includes 30 waterproof call keys that can be conveniently mounted on tables or walls with adhesive stickers or carried in a pocket for flexible use. Specifications: · Material: ABS · Display Receiver Model: SU 620 · Working Frequency: 433.92MHz · Receiver Size: Approx. 210 x 140 x 30mm (8.3 x 5.5 x 1.2in) · Receiving Sensitivity: 105dB · Decoding: Learning Code · Waterproof Grade: IPX4 · Working Temperature: -20℃ to 60℃ · Transmitter Battery Type: 2 x CR2032 Lithium Batteries (Included) · Single Transmitter Battery Capacity: 240mAh · Transmitting Current: 10mA±3mA · Standby Current: Less Than 1uA · Open Distance: More Than 200m (656ft) · Key Life: 1 Million Times · Single Key Function: CALL Package Includes: · 1 x Wireless Display Receiver (SU 620) · 30 x Waterproof Call Keys This Wireless Calling System combines durability, portability, and advanced wireless technology to provide an efficient and reliable communication solution for various professional and personal settings. Improve your workflow and customer service with this easy-to-use, waterproof, and long-range paging system.