Features  1.Ample working distance: 4cm - 15cm 2.Reasonable depth of field: no matter how complicated the structure of object is, our microscope just makes it clear 3.Exclusive lens: reduce veiling glare and prevent from harm of smudging which produced in the process of soldering 4.Real time imagery, no smear  5.300 times magnification, 1920*1080P, 30fps and high quality non-interpolate Large CMOS sensor 6.Digital zoom,4× 7.Metal stand, sturdy and durable, demonstrates quality 8.Bring dual lights own, reduce inverted image   Packaging included  Digital Microscope Camera X 1 Metal base Stand X 1 HDMI cable x1 USB  cable X 1 DC adapter X 1   We can't guarantee that this device can be used with all PC, so, the USB output model is just an option. If you only want to buy a USB microscope, our store has other devices.   And also, about the instructions, we only have the electronic edition (like the followed picture shows), if you need one, after you bought this item, you can send massage to us, and we will send you in private.