Feature:1. RELIABLE TRANSMISSION: Wireless calling system use high performance wireless technology, stable and reliable, suitable for a variety of places, long wireless distance2. BEAUTIFUL AND PORTABLE: Restaurant wireless calling system has a fashionable and novel design, beautiful appearance, easy for you to carry and move3. ACCURATE DISPLAY: Wireless paging buzzer calling system can display time, month and date, accurate and convenient for memory, useful and practical4. HIGH CAPACITY: The wireless buzzer calling system support up to 400 callers for large scale use, which is widely used in the service area with strong re use ability5. APPLICABLE SCENARIO: Queue wireless calling system adopt advanced microprocessing chip, widely used in restaurants, hotels, offices and other placesSpecification:Item Type: Wireless Calling SystemModel SU-620 Display Receiver Parameter Description: Operating Frequency: 433.92MHzSize Specification: Approx. 210 x 140 x 30mm / 8.27 x 5.51 x 1.18inMaterial: ABSReceiving Sensitivity: -105dBDecoding: Learn codeWaterproof Rating: IPX4Operating Temperature: -20~ 60Voltage: 100-240VModel SU-1K Button Transmitter Parameter Description: Operating Frequency: 433.92MHzMaterial: ABSBattery Type: Alkaline batteryBattery Model: 12V 23ABattery Capacity: 60mAhTransmitting Current: 10mA3mAStandby Current: <1uAOpen Distance: >200 metersKeystrokes: 1 Million timesWaterproof Rating: IPX4Operating Temperature: -20 ~ 60Single Key: CALL.Package List:10 x Table Bells10 x Adhesive Stickers1 x Power Adapter1 x Receiver1 x User Manual