AITENG V026J Wireless Batteryless WIFI Doorbell, UK Plug Filter-Audio Adapter Dot punk keycaps

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AITENG V026J Wireless Batteryless WIFI Doorbell, UK Plug Filter-Audio Adapter Dot punk keycaps1. Working mode: self powered doorbell 2. Receiver working voltage: 110V 240V 3. Power: less than 2W 4. Working frequency: 433. 92MHZ 5. Remote control receiving distance: more than 150m (open area) 6. AC terminal (pin): US plug, EU plug, UK plug 7. Transmitter operating frequency: 433. 92MHZ 8. Transmitter operating current: less than 15mA 9. LED indicator: press the launch button, the LED of the transmitter is on, the transmitter works, and the