couch

I am looking for a Wireless Mouse that will work well on the couch. I mean simply just moving it around on the couch cushions and not on any sort of pad. Would the Razer DeathAdder V2 Pro work well for this or would some other type be better?

After install a new ssd as boot device ,old hdd make noise regularly . The noise is sound like "dar" about every 20 minutes ? the sound is very clear and a little loud. Someone said it's the hdd head's sound. I find several people meet the same problem like me in chinese website. They bought...