Note: Use with 433.92MHz host (excluding host)Caller for the elderly, watch emergency button, watch transmitter, watch call button, watch wireless remote control, SOS emergency button, watch wireless remote control,Product introduction: Wireless watch-type emergency button, mainly used for places requiring emergency help, novel style, easy to carry, simple to use, especially suitable for the elderly.Watch design, easy to carry and use; It can be used with 433.92MHz hostsProduct parameters:Working voltage: 12V27A;Working current: 13mA;Operating frequency: 433.92MHzFrequency deviation: 0.2MHz;Transmission power: 10mW;Launch distance: 100m(open);Coding chip: 1527;Modulation mode: ASK/OOKOperating temperature: -10 ~ +55.No delay, trigger immediatelyScope of application:Nursing home, hospital, home, old peopleColour:BlackMaterial:ABS+RubberPackage Contents:1X 433.92MHz Wrist Watch CallOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.