Feature: 1. WIRELESS TECHNOLOGY: The desktop bell button is stable, reliable, and suitable for various locations with a long wireless range. 2. STYLISH DESIGN: The desktop bell button and receiver feature a fashionable and innovative design, appealing appearance, and convenient portability. 3. DATE AND TIME DISPLAY: The restaurant hotel paging system shows the date and time accurately for easy reference and memory. 4. SUPPORTS UP TO 400 PAGERS: Ideal for large scale usage requirements, this system can support a high volume of paging devices. 5. ADVANCED MICROPROCESSOR CHIP: The paging system is widely used in restaurants, hotels, offices, and other establishments, thanks to its advanced microprocessor technology. Specification: Item Type: Hotel Pager System Material: ABS Frequency: 433.92MHz Receiver Size: Approx. 210 x 140 x 30mm / 8.27 x 5.51 x 1.18in Receiver Sensitivity: -105dB Decoding: Learning Code Waterproof Level: IPX4 Operating Temperature: -20℃ to 60℃ Mode SU 1K Button Transmitter Parameter Description: Frequency: 433.92MHz Transmitter Material: ABS Transmitter Battery Type: Alkaline Battery Transmitter Battery Model: 12V23A Transmitter Battery Capacity: 60mAh(built in) Transmission Current: 10mA±3mA Standby Current: <1uA Transmission Distance: >Approx. 200m / 656ft Button: 1 million times Waterproof Level: IPX4 Operating Temperature: -20℃ to 60℃ Single Key: CALL . Package List: 20 x Table Ring Buttons 20 x Stickers 1 x Power Adapter 1 x Receiver 1 x Manual