My favorite  piece of technology is my electric guitar. Maybe it's not the one I use the most, but it's the most important for me.
It's a Squier's Stratocaster, made in Japan in  90's. The Squier's Japanese series were really good in the 90's, almost as good as Fender's (Squier is a copy of Fender's guitars by the same company). It's not very technological but I love it.
I just play at home or with my friends, but when I do I realize I should do it all the time. Songwriting's been always difficult to me, however I've been focusing on it in the last few months, not very fast but I'm trying haha.
Without my electric guitar I would have to stop doing something I really like, I mean, I have the acoustic one but both give me totally different things.