Bellman & Symfon Visit Alerting System

Visit is a wireless home alerting system from the Swedish company Bellman & Symfon for Deaf and hard of hearing people. Transmitters detect events such as a doorbell, a telephone or tablet call or message, a baby crying and a fire alarm, and send a radio signal to receivers that alert the user with bright flashes or vibration: a flash receiver, a wearable pager, a wrist receiver and an alarm clock with a bed shaker. Current units use the 868 MHz band in Europe and run on standard batteries.

Text from OyList