1、The emergency button built-in high-performance wireless signal transmitter can quickly send an alarm to the control panel. 2、Compatible with wireless alarm host, wireless signal transmission distance is far. 3、The button can be paired with a wireless doorbell, and the doorbell emits a welcome ringtone or language when the button is pressed. 4、Pair the button with the control panel to learn, when an emergency situation occurs, press the button to achieve a one-click alarm notification. 5、Suitable for families, shopping malls, banks, and nursing homes. Features: The emergency button built-in high-performance wireless signal transmitter can quickly send an alarm to the control panel. Compatible with wireless alarm host, wireless signal transmission distance is far. The button can be paired with a wireless doorbell, and the doorbell emits a welcome ringtone or language when the button is pressed. Pair the button with the control panel to learn, when an emergency situation occurs, press the button to achieve a one-click alarm notification. Suitable for families, shopping malls, banks, and nursing homes. Specifications: Condition: Brand New Material: ABS Color: White Size: Approx. 6.9x 3.9x 1.5cm / 2.7x 1.5x 0.6in Working Voltage: DC12V Working Current: less than or equal to 15MA Use Environment: -10 degrees to 55 degrees Transmission Frequency: 433MHZ Battery Type: 12V 23A Battery Life: 6 to 12 months Wireless Transmission Distance: 100 meters in an open environment Features: Trigger an alarm for help in an emergency Application: Widely used in banks, shops, nursing homes, shopping malls Package List: 1 * Emergency button (with a built-in 23A12V battery) Note: This emergency button cannot be used independently and must be used together with the 433 frequency alarm host device.