I think the following line puts it into more context:

> I find loud noises challenging.

They're basically comparing other people's speaker music to noise pollution. Two stroke engines can be heard from a long way off, and I've got box fans that are louder than my electric weedwhacker.

I think he means that electric handheld lawn equipment should be much quieter than gas-fired lawn equipment which is an infamous nuisance

Just unsolicited sharing of their own personal preferences with the rest of the forum readers