Features:

• Locates and identifies over 6,000 stars, planets, and constellations with GPS technology
• Red LED backlit display for easy-to-read information
• Accepts SkyTour SD multi-media cards for interactive tours of the night sky
• Includes USB port for easy download of database updates
• Measures 7.4 x 2.5 x 4.0 inches (W x H x D)

Rating : - skyscout
Love it. I've used it many times already and have had no problems with it. Helps me find sky objects to view with my 10" Dob.