Telescope Explorer with 70 mm refractor. Includes smartphone holder for target identification. Delivered with 2 Kellner eyepieces (25 mm and 10 mm, 1.25") as well as a 2x Barlow lens. Secure your smartphone in the holder on the telescope and launch the StarSense Explorer app. Point the telescope at the stars. The smartphone camera captures a wide-angle image of the sky. The app identifies star patterns in the image and knows exactly where you are pointing. Select a target and manually move the telescope towards the arrows on the screen.