It couldn't be easier - Celestron has revolutionised sky observation. With the Celestron StarSense Explorer telescope and the great app, you no longer need any prior knowledge of stargazing, alignment or the Earth's rotation. Just set up the telescope, mount the phone, launch the app, select the target and observe. Telescope Explorer with 130mm Newtonian reflector. Supplied with 2 Kellner eyepieces 25mm (26x) and 10mm (65x). The use of these telescopes and the app is very user-friendly. First, the app is installed on the smartphone. Then the smartphone is inserted into the special holder on the telescope during observation. The smartphone's camera scans the starry sky and indicates the direction in real time with arrows in which the telescope should be tilted. Once the position is reached, the crosshairs light up green and the desired target; moon, stars or constellations can be observed in the eyepiece. Note: The 307x magnification is the maximum usable magnification and can only be achieved with appropriate accessories for the respective model (not included).