ShineMe Mini Table Dust Vacuum Cleaner Table Cleaning Assistance Keyboard Cleaning Dust Vacuum (Black) Material: Made of Nylon and brush, touch comfortable and easy for cleaning the desk, table for your Home or School study for your kids, like Rubber debris, Scraps of paper and Pencil crumbs. Portable&Lightweight: Mini Size 3.5"*3.5"*2.6"(9*9*6.5cm). Easy to carry to school Studying for your kids, like Rubber debris, Scraps of paper and Pencil crumbs. Design: Removable bottom creative design, you can push the bottom when need dump the dust, it is easy and fast to clean. Wireless&Instruction: 3V working with 2*AA batteries (not included). Please press the "PUSH" button and the cleaner case cover will open and then you can put the batteries in. Great for remove the dust on the surface of home appliance(the flour cleaning when baking), laptop, computer keyboard or furniture. Perfect at home/office for cleaning dust, bread crumbs, paper scrap, cigarette ash for the sofa or the car seat. Clean the flour and other debris when cooking in kitchen. Hold the body cap, then put on the rotation right and you can open the lid. Insert the batteries as marked &#034;+ -&#034;on the motor cover. Close the cover and push the button to the left then finish. Turn the item upside down and press the&#034;PUSH&#034; button to clean the debris. Don&#039;t mix old and new batteries. Insert the batteries on the right positive and negative direction. Remove the batteries when not using for a long time, or batteries will damage and leak. Don&#039;t put your finger into the suction port.