You can now listen to BHR107.3 using an Amazon Alexa Smart Speaker.

First, however, this needs to be enabled.
You can say “Alexa, enable skill BHR107.3“
OR
Open the Alexa app on your phone, navigate to ‘More’ and then open ‘Skills & Games’ . 
Type ‘BHR107.3’ into the search box and hit Enter
Click on the station logo and hit the ‘Launch’ button to enable this.

You can play the station immediately from this screen or ask your smart device to "Launch BHR107.3 "