回複：Nice! A few questions

I don't have a bike as wife won't even allow me to think of it.
你要多嘮叨直到她發煩, 她就沒準同意了.

1. Where do you get the power to the GPS?
The chaged GPS can stand 2 hours. Or you can buy USB adapter connects to the bike's battery.

2. How do you hear the turn-by-turn voice?
Yes I can hear, but not very clear with the noise build up when you run fast. I don't rely on the speaker, only scan the display is good enough.