1、Call Button System: 1000ft signal range, stable transmission, and waterproof nurse call buttons ensure quick response in clinics, nurse stations, and care facilities. 2、Full Featured And Practical: Support up to 1000 call buttons, easy configuration, volume adjustment, and button deletion make it a reliable business tool. 3、Convenient and Long Standby: Easily install buttons on tables or walls, carry in pockets or wear around neck for quick access; standby time lasts 6 to 12 months. 4、Versatile Application: Ideal for restaurants, care facilities, cafes, supermarkets, hotels, hospitals, banks, schools, factories, and construction sites to enhance service quality. 5、Waterproof Design: The wireless calling system is made of ABS call buttons paired with the receiver for plug and play convenience, suitable for various settings. Item Type: Wireless Calling System Working Frequency: 433.92MHz Receiver Size: Approx. 210x140x30mm / 8.27x5.51x1.18in Receiver Material: ABS+PVC Receiver Sensitivity: -105dB Decoding: Learning Code Waterproof Level: IPX4 Waterproof Working Temperature: -20°C~ 60°C Transmitter Model: SU-1K Transmitter Working Frequency: 433.92MHz Transmitter Material: ABS+PVC Battery Capacity: 60mAh x 10 Alkaline Battery 12V 23A Transmitter Current: 10mA±3mA Standby Current: <1uA Open Distance: >200m Button Life: 1 million times Waterproof Level: IPX4 Waterproof Working Temperature: -20°C~ 60°C Button Type: CALL 1 x Call Bell 1 x Power Cord 1 x User Manual 10 x Button 10 x Double Sided Tape