I have wires all over my desk. Why? Because my expensive MX COMBO THANGS, KEYBOARD AND MOUSE DO NOT WORK. I JUST SPENT NEARLY AN HOUR ONLINE WITH A REP.................... AND THEY STILL DO NOT WORK. I WILL NEVER NEVER NEVER PURCHASE FROM LOGITECH AGAIN. I HAVE PURCHASED MANY MANY LOGITECH KEYBOARDS AND MICE. NEVER NEVER AGAIN. THEY ARE SHITE. TICKET NUMBER 15808911. CHECK IT OUT. SHITE