Byron Wireless Portable Doorbell Set, Touch Free Door Push, Wave Sensor, 100m Range White, DBY 23431

Contactless operation: A wave sensor registers hand movements in front of the bell push to chime without touching, while traditional button pressing remains available Unobstructed coverage: The chime communicates wirelessly with the push button up to 100 m, allowing flexible portable placement throughout the house Sound customization: Choose from 60 chime tunes and adjust loudness across 4 steps between 30 dB and 85 dB, or silence alerts completely using the mute function Flashing indicator: Lights illuminate on both bell push and portable chime when triggered, offering a clear visual signal for noisy rooms or people who are hard of hearing Flexible installation: Attach the IP44 bell push with supplied double-sided tape or screws, powered by the included CR2450 battery or 8 V wiring; pairs directly with the Byron DBY series