Elderly pager, watch emergency button, watch transmitter Watch wireless remote control, SOS emergency button, watch wireless remote control Product introduction: Wireless watch-style emergency button, mainly used in places where emergency help is needed The design is novel, easy to carry, simple to use, and especially suitable for the elderly Watch design, easy to carry and use; compatible with 433.92MHz host Technical parameters: 1. Working voltage: 12V27A 2. Working current: 13mA 3. Working frequency: 433.92MHz, 315MHz (customizable) 4. Frequency deviation: 0.2MHz 5. Transmitting power: 10mW 6. Transmitting distance: 100m (open space) 7. Encoding chip: 1527 8. Modulation mode: ASK/OOK 9. Working temperature: -10°C to +55°C 10. No delay, triggers immediately Color: As shown Material: ABS Package Contents: 2 x Pager (black + white) Only the above package content is included; other items are not included Note: Light reflection and different displays may cause slight color variations between the item in the picture and the actual product. Measurement error allowance is +/- 1-3cm