Doorbell with Coloured Flashing Lights Doorbell Ranging from very low frequency

Ranging from very low frequency (low pitched sounds such as S3)

Colour: Black

Auto answer function

Upon hearing the smoke alarm

It's lightweight and designed for people who want to carry it around in their pocket

Doorbell with Coloured Flashing Lights Doorbell Ranging from very low frequencyNever Miss Someone At the Door! Doorbell Ringer Flasher For Deaf and Hard of Hearing people Has switches for ring flash or ring only or flashing only notification Doorbell button lights up to let you know its sending the signal to the flashing unit so your visitors don't have to figure out if its working or not. Works great in noisy places eg factories, warehouses etc Flashing unit assists notification in a quiet environment Small & portable so you