For these purposes, I'll call technology/gadgets any smartphone, iPod, computer (or Mac for those who wish to be pedantic), TV (or cinema) and Radio.
That bit is just to avoid being heckled by those who will point out that everything humans have invented is really technology, including the wheel. Um, and don't bother ranting about the good old days when no-one used to use technology if you're over 40 or so.
Anyways, longest I've been is probably 3 days.