Features:The telescope has 8 times zoom, which can adjust the focal length well.The telescope can be used as a monocular.Fit most kinds of mobile phones, include flip phones and bar phones, which has back camera, can be connected to the telescope through the clip. With it, mobile phone's quality of imaging can be improved evidently.Applicable to watch the game, concerts, tourism, observe animal lovers, news reporter long-distance shooting etc.Private detective taking pictures forensics, geological exploration, forestry management, railway port scheduling and etc.The product includes: one telephoto lens, one clip, one cleaning cloth.Turn on the phone camera to see whether it shows full screen view, if not, to make sure that the camera lens and your phone camera are aligned To get clear image, manually fine-tune the focus by adjusting the focal ring of lens. For long distance focus, turn the ring clockwise until the image is sharp and clear. For close focus, turn the ring anti-clockwise until the image is sharp and clear Specification:Type Phone TelescopeMaterial Optical lens, ABS, Metal, RubberQuantity 1pcsItem Color:Black、WhiteActual Magnification 8XObjective Lens Diameter 25mmExit Pupil Diameter 2.5mmField Angle 6.2Line Field 96m/1000mSize 3*3*7.cm / 1.2*1.2*2.8Net Weight 0.05kg / 1.8oz