Introducing ‘trem-bel’ the clever multi alerting wristband/doorbell system for vulnerable people


trem-bel took best new invention 2018 at the British Invention Show

Did you know?


Of people have had problems contacting someone with hearing loss.

2 in 5

People have missed a delivery because they couldn’t hear the bell.


Of people think a device that can alert someone to answer the door would be useful.


Water Resistant

Fewer Missed Deliveries

Outdoor Use – Never Miss an Alert

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