ATN BinoXS-HD 4X Smart Day/Night Binoculars with Full HD Video Recording with Sandisk Imaging Ultra microSDXC 64GB UHS Class 10 Memory Card w/Adapter

to record video and take photographs you'll need a microSD card on the right side of the binocs there's an access port insert your microSD card in the middle slot make sure you have it the right direction if you have it backwards don't force it it should slide in easily once it clicks into place close the cover and you're ready to go to install the batteries on your buy knocks on the bottom side slide over the battery cover lay the ribbon flat and place three cr123 batteries with the flat end towards the spring and then slide your battery cover back into place to turn your by Knox on press and hold the power key for a couple of seconds and then release it it'll take a moment and then the menu should start coming up to focus your by Knox you'll want to adjust the diopters which are these lenses on the back turn them individually to adjust for each eye while doing that you want to be look