I have choices to have delivery ring door bell due to living in a five apartment building amazon train your staff to read where customers prefer drop off package. They DO slow you down when swimming, so I wouldn?t recommend if you?re competing in any way. For some reason you have to pair your headset with your Xbox each time the firmware is updated. Im not using that pocket anymore, storing a packet of tissues there instead - phone stays in one of the side pockets, which is fine is youre a bit careful when you put it back in. Sounds balance. I have had this mouse for a few days and I am now able to click again. Pull out the pin and loosen the set screw and these pop right off. First, it took me over an hour and not exactly easy, so my experience is different than those who say easy and 20 minutes. (To some this is a hassle. The 57mm drivers deliver good sound.