I have a 3,100 SF home and I mine still work when phone is left on 3r floor and I'm on first. I have left phone in house and walked out to mail box and still it stayed connected. That is about 80 ft away. I don't think they claim they will work that far away but so far I have gotten very good distance out of it. I usually play it off my iPhone 7 plus. I'm assuming this can very depending on the device your connected to.