Wireless watch-style emergency button, designed for situations where immediate assistance is needed. Features a and compact watch design that is easy to carry and simple to operate, ideal for elderly users. Compatible with 433.92MHz alarm hosts. Technical specifications: 1. Operating voltage: 12V 27A 2. Operating current: 13mA 3. Operating frequency: 433.92MHz (315MHz available as custom option) 4. Frequency deviation: 0.2MHz 5. Transmission power: 10mW 6. Transmission range: 100m (in open space) 7. Encoding chip: 1527 8. Modulation mode: ASK/OOK 9. Operating temperature: -10°C to +55°C 10. No delay – triggers instantly Color: As shown Material: ABS Package includes: 2 x Pagers (black + white) Note: Other items not included. Please note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3cm.