How to use the focus/magnification dial to focus: When you place the scope to the object, then as you rotate the wheel, you will adjust the focus and power. First, a lower power will come into focus. Then, if you keep turning the wheel, it will eventually come back into focus at . When using the phone app( phone use), you can then use the zoom feature to increase the power up to an additional 2x. Keeping the scope steady when focusing or taking a picture.Wifi microscope for mobile use: There is an app (MAX-VIEW) you can download and install on your mobile device (Andriod phone or ) to receive images from the microscope, and it's easy to use. You will need to set your Wi-Fi on your device to connect to the scope, and connected, you could snap pictures through it, and even record videos.USB connection for computer: 1. For win 10, 11, you can directly plug into the USB port and search CAMERA in WINDOWS to and click on. 2. WIN 7/8, see the manual.3. For MacBooks, use Macbooks' bundled software Photo Booth or Quick Time Player directly.4. Note: disable the default laptop camera in Windows! And you have to change your privacy for the camera, which needed to be changed to permit access.Applicable system version: Optional software for IOS, Android, Windows, macOS X. This microscope can support Android 6.0+, iOS 9.0 or later, Windows vista/7/8/10/11 or later, and macOS X 11.0 or later.It is rechargeable: it takes 1.5 hours to fully charge, and you can use it for 1.5 hours. You can enjoy the portable mini pocket microscope on your hikes or .A funny tool: This scope is a useful instrument not suitable for professional serious biologists! This is definitely a interesting thing for parents, adults, teachers, students, k, children, collectors, testers, electronics repair folks, and inquisitive folks who are interested in exploring plant skin hair scalp trichomes, and the microscopic world. It is also good for SMD soldering and viewing sessions, such as inspecting electronic circuit boards, coins, , etc.1080P + 720P video: 2 pixels, High-definition picture video quality, 1920x1080 picture resolution, and 1280x720 video resolution. 50x+ Zoom, The optics are of high quality, and the edge-to-edge is . The built-in 8 Dimmable the color is clear, bright, and true.color: Blackmaterial: plasticPackage Contents:1 x microscope1 x USB data cable1 x English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.