<b>Product included:</b><br> Timer switch×1<br> Mouse pad×1<br> heating pad×1<br> Instruction manual×1<br><br> <b> <b>It comes with a timing switch,you do not need<br> unplug the power cord after use,it will<br> automatically truned off after the end of your<br> selected working time(2 hours/4 hours/8 hours),<br> or you can turn off by yourself. </b> <br><br> The temperature can adjustable from 60 to 113<br> degrees fahrenheit(3 Gears).<br> <b> Why the heating pad mounted on the top of<br> the warmer<br>mouse pad and in contact with<br> the back of the hand? If the heating pad is<br> installed at the bottom of the mouse pad, we<br> put the hand on the mouse when we use it,<br> Only the bottomof the mouse touches the<br> heating part, which will cause the mouse<br> to be damaged and the hand will not feel warm. <br> <br> Warmer usb mouse pad dimension:8.7x7.9<br> inches(22x20cm),The interior is approximately<br> a circle with an perimeter of 8.3 inches and<br> the height is 2.5 inches. it has enough space to<br> use a mouse.,Supported by computer USB<br> power or 5V phonecharger or portable power bank.