Bulky! Schmidt-Cassegrain telescope with built-in WiFi! You no longer need a hand control box - just point the telescope at the most beautiful celestial objects with a click on your smartphone or tablet. Connect your mobile device to the wireless network of your NexStar Evolution Telescope and explore the universe with the free Celestron SkyPortal app for iOS and Android. This planetarium program will show you the current sky view or a list of observation targets for your location. The foolproof SkyAlign is built into the Celestron app, so you've set up in the telescope in minutes and set the three reference stars. The durable LiFePO4 battery easily lasts an observation night. + Control your telescope wirelessly with your iOS or Android smartphone or tablet using the free Celestron SkyPortal app. + Computer controlled GoTo mount with high performance brass worm gear for improved tracking accuracy and reduced gear play + Rechargeable Lithium Iron Phosphate battery with enough power for up to 10 hours of observation + Improved design with manual clamps, integrated carrying handles, two accessory pads and a USB port to load smartphones or tablets. + Sturdy steel tripod with height markings + The scope of supply includes StarPointer red dot finder, two 1.25 "Plossl eyepieces, 1.25" diagonal mirror, power supply and hand controller