Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Celestron SkyScout - Astronomy for Beginners Expansion Card Has anyone bought and used one of these? Are they useful and do they contain much more information than the built in information?Any feedback will be appreciated.
Document: Wow, my wife bought this for me for fathers day and I can't put it down. I've gained as much knowledge from this little gadget as I did in my astronomy class in college. I'd recommend a sky scout to anyone with kids-they'll ask some tough questions and you'll sound like a genius with its help. One thing to look out for is the sleeves that you are required to place over batteries before installation do not fit all rechargeable batteries.
I bought my SkyScout back in 2008 and I used it to aim my 8" reflector. It worked OK but I couldn't get much more than 2-3 hrs of use out of set of batteries even with the illumination set low. The GPS doesn't hold your last position in memory so you constantly have to wait 5-10 minutes for the system to reacquire or manually input this information along with the correct time. My old Magellan hand held GPS fixes it position way faster than this thing.
I have used the SkyScout almost every single night since I received it in the mail. I purchased the optional speaker so that others could share in the fantastic audio desriptions of the stars, planets and constellations and the two available sim cards about astronomy and the stars. In addition I bought the Celestron Sky Charts and the guidebook Night Watch.
Much better than a chart!Wonder if/when the expansion slot will be useful?? ?Would buy it again at twice the price!
I have a Celestron Nextstar SLT 130 which is one of my favorite telescopes due to the ease of use. I also ordered a GPS unit to upgrade the telescope. I also bought the SkyScout to increase the ease in finding and identifying stars in my very difficult location which has too many trees and too much light pollution. I read about the SkyScout Connect and was skeptically interested. Last night, in marginal overcast, I tested my new SkyScout, SkyScout Connect with the Celestron Nextstar SLT 130.
My crowd vocalized their pleasure many thinking I was the greatest astronomer they had ever met! The SkyScout and SkyScout connect made my telescope much more productive and fun. I will now sell my GPS unit as the Sky Scout  has one built-in and fully integrated.
I bought this for my husband and my children as a holiday gift. They are outside every night looking at the sky and learning about the stars. The amount of information and quality of information is amazing. It is easy to use and gives my husband and boys an educational activity to do together. My sons are 6 and 3 and both can hold and work the planetarium easily. I would recommend this to anyone who loves the sky! !
I bought this from Amazon when it was on sale here for under $200. I also ordered "The Night Sky" star finder by David Chandler to learn how to use a sky chart so when I am ready to purchase my first telescope for astronomy, I won't have to spend additional $$$ for a Go-To package. The Celestron SkyScout is a good complement to the star gazing gear I'm putting together (which includes a simple compass people use for camping & hiking).
The idea is genius - marry a GPS with an accelerometer and create a device that can tell you exactly what star it is pointing at, or direct you to any visible star. And it pretty much works as advertised. We've used ours on several nights so far, and everyone in our extended family has wanted a turn spotting different stars.The info on the major stars is plentiful. The audio is a nice idea, but it just reads the same information that is on the text display.
The SkyScout does come with earbuds, but no one really likes to share them.While the SkyScout comes with a case for transporting this unit and it's cables, it does not protect the unit while it is in use. We bought theScoutcase Deluxe Soft Case for the Celestron SkyScout Personal Planetariumfor extra protection since our kids also use the unit.We highly recommend the SkyScout for it's ease of use and relatively low price. This has brought us a new level of enjoyment to our stargazing!
Answer: I finally received this card. Regretfully, I'd recommend skipping it and just getting a good astronomy book.http://www.amazon.com/review/product/B0017RWWTW/ref=cm_cr_dp_all_summary?%5Fencoding=UTF8&showViewpoints;=1&sortBy;=bySubmissionDateDescending