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

Technology is fabulous, and most of us love it!  But for some people, like the elderly, an increasingly digital world can be confusing, stressful and difficult to control. At Amvill Technologies, we specialise in solutions to promote independent assisted living. Technology to help people in later life remain at home and their families know they will be able to respond to essential alerting sounds in their absence.

trem-bel is a simple but clever intelligent alerting system targeted primarily at those with compromised hearing. Many more of us are being called into caring for our loved ones. The BBC recently said 70% of people will experience at some time  in their lives having to look after someone close to them. Staying independent is treasured by many.  trem-bel is a device that will help to achieve this. We want to launch a product that can also be programmed to ‘hear’ sounds around to the users which are important to them. This could be the microwave ding or a telephone, with up to five other audible alerts programmable into the device.

trem-bel can to be adapted to the care home environment, acting as a non audible alert to activities within any multi bedroomed home. Staff will save time by not needing direct contact with the occupant to let them know of an appointment to attend which could be the hairdresser, the chiropodist or lunch!

Assisted technology should be for everyone who needs it. We take into consideration our users’ physical and cognitive faculties:  You can upgrade technology but you can’t upgrade people.

  • Hearing
  • Dexterity
  • Eyesight
  • Literacy
  • Mental welfare


trem-bel pack shot

trem-bel has three key components

  • A doorbell press button, with response indicator.
  • A wristband that lights and vibrates according to the alert.
  • A bell-box with contactless recharge function for the wristband.

The bell-box can sit anywhere in the home, but the wristband can be used indoors and out as it will be completely sealed and waterproof. Once the bell-box is optimised, the range should be 300 metres to the wristband (depending on environment), so happily call on dad when he’s strimming the hedge at the bottom of the garden!

A one button wristband

The wristband is expected to run for at least a couple of days before it will need recharging on the dock.  The expected life of the battery in the wristband is about five years.

Simple and Smart!  Indoors or out.

trem-bel is simple but smart. It includes an easy to operate wristband, that is durable, flexible, rechargeable and waterproof.  trem-bel  is also multi-functional and can be extended to respond to other alerts in the home, including phones, microwave cookers and oven timers, programmable the choice is yours!

  • Sleeping is OK,
  • Not wearing hearing aids  ( 25% of people who have them don’t).
  • Washing up with the wristband..fine
  • In the garden, working with garden machinery, no problem.
  • Volume on telly loud, no worries… trem-bel will let you know when its time to respond to a given alert.

We won first prize at The British Invention Show

Best British Invention, October 2018

Jacqui & John with BIS awards
Jacqui and John with awards


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