Obvious I know. But why didn't you ask your boss where he got his from?

I was just looking around to see what else there was, read reviews on these and others, thought I'd ask others that are into cars and devices for cars (my boss isn't) what they use/know etc He couldn't remember where he got it from, only that it was around £30
Heaven forbid a question about a car related device, be asked on a car forum
No replies (in my budget) and I had the car, thought bugger it I'll get it, if I don't like it I can send it back. So far so good.
Jamie,
It's got a battery and lasts 22hours I read, so good enough for 2 weeks commuting but I might run the cable yet.