Feeding Starlings, neighbour deploying electronic devices, will this harm the birds?

Hello, I need advise please? 

I feed a variety of small birds, had been doing so many years, This time of the year I have a number of starlings, adult and fledglings visiting, as you know they are rather noisy.

I get on really well with my neighbour; however his new husband is objecting to me feeding  the birds, I tried to resolve the situation amicable but without success. He installed several electronic devices, will this harm the birds in anyway? 

The birds does not seem to react to it at all.

I live in a privately  rented property.

Thank you for your assistance in advance, Anna.