Welcome to our store！</br> 1、Using radio frequency wireless technology, the system is relatively stable and the wireless receiving distance is long. 2、The appearance of the call button is fashionable and novel, and it is easy to move. 3、The display receiver supports 400 pagers, and supports 1‑button or 4‑button pagers. 4、The call button word can be selected, single or list display mode, and the volume of the 30‑level digital control is adjustable. 5、This elderly monitoring uses advanced micro‑processing chip, stable and reliable performance, can name the call button beginning with ABCDEF letters, and is widely used in homes, hotels, bars, etc. <div class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Elderly Monitoring Material: ABS Working Voltage: DC5V Working Current: 100mA±10mA Receiving Sensitivity: 105dB Decoding: Learning the Code Waterproof Rating: IPX4 Working Temperature: -20℃~ 60℃ Button Transmitter Parameters: Operating Frequency 433.92MHz Material: ABS Battery: Two Built-in CR2032 Lithium Batteries (included) Battery Capacity: 80mAh Emission Current: 10mA±3mA Standby Current: &lt;1uA Open Distance: &gt;200m Keys: 1 Million Times Waterproof Rating: IPX4 Working Temperature: -20℃~ 55℃ One Touch: Call Voltage: 110-240V <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> </div> 1 x Display Receiver 10 x Button Transmitters 10 x Films 1 x User Manual 1 x Adapter Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>