Item Type:Wireless Calling System <br>Material: Plastic, Electronics <br>Host: <br>Input Power: DC12V 1A <br>Transmission Frequency: 433MHz <br>Transmit Power: 240mW <br>Number of Pager: 998 <br>Number of Charging Pager: 16 <br>Pager: <br>Working Voltage: 3.7V <br>Receiving Frequency: 433MHz <br>Receive Sensitivity: -114dBm <br>Standby Current: 30mA <br>Standby Time: 20H <br>Transmission Distance: More Than 800meters/874.9yd <br>Prompt Method: Buzzer, Flashing Light <br>Battery Type: Built in 250mAh Lithium Battery <br>Applicable Voltage: 100 to 240V1、Wireless Transmission: One host controls 16 sub machines, wireless transmission, 800 meters transmission distance, up to 998 sub machines can be connected, which can serve more customers. <br>2、Wide Applications: Widely used in fast food restaurants, food courts, pizzerias, churches and auto shops or other places where there are many customers waiting to be served. <br>3、3 Vibration Modes: Using sophisticated production technology, with 3 vibration modes (vibration, beep, flashing), with excellent performance. <br>4、Long Standby: Built in 250mAh lithium battery, equipped with upgraded chip, super long standby time of 20 hours. <br>5、Deep Waterproof Design: Safe and deep waterproof design, waterproof and oil proof, no longer have to worry about overturning the soup.<p>1 x&nbsp;Wireless&nbsp;Calling&nbsp;System&nbsp;</p><p>16 x Restaurant Pager</p><p>1&nbsp;x Power</p><p>1 x User Manual</p>