( if not go to JUSTANSWER.COM and get a professional to answer it for you quickly ) ultimately saving time and money, and purchasing the correct device for your need's with out any regrets first time round.
Your looking for the Owner's Manual on any webpages you visit looks as below
P.S. when opening a Manual, MaMa say's be patient, caching the Manual is sometimes slooooooooooow.
It may say on Garmin's site dis-continued product, they are still being sold elswhere.
All prices are ball park figures, as they vary on Amazon, so, do a bit of hunting, find the cheapest of the 2/3 offer's they have on there.
You can "Right Click" any link and open it in a new window and download a copy.
I hope this is useful for you.
Happy reading
Regards
Richard.