This will be the best gift for family, friends and outdoor lovers on the occasion of Christmas! 4k 10-300x40mm telephoto zoom monocular telescope and a lens diameter of 40mm provides a clear and bright image and enjoys the beauty of di. br/ HIGH DEFINITION ZOOM: 10x-300x simple rotation adjustment, also added the function of adapting to myopic people. Let you feel this clear world with your heart. br/ CLOSE FOCUS: Can clearly see any object outside Telescope di: to infinity, let this perfect world be clearly in front of your eyes. br/ STRETCH DESIGN: After installing the mobile phone, there is no need to remove the mobile phone to adjust the focus, just stretch it lightly to adjust the focus. br/ PACKAGE INCLUDING: br/ 1x monocular telescope 1x tripod 1x mobile phone clip 1 x User Manual How to use: 1. Docking the phone, the phone will turn into a monocular telescope in seconds br/ 2. Align the clip buckle with the phone lens, tighten the clip screw to make the clip more stablebr/ 3. Install the phone telephoto lens, the installed phone lens br/ 4. Fix the tripod We are always at your service, if you have any questions, please contact us via email.