I hate buying shoes online but these fit absolutely true to size. I used the mike for gaming with my headset. All you have to do is pull off the old ones and snap in the new ones, took like 5 minutes. (Disclaimer: This is not a much a review as it is advice for avoiding getting ripped off. Expected more from elago. It would be easier for them to read my phone number off the label i also have on it TBH. I will use them in the garden, hanging washing out etc. Battery is spectacular and lasts as long as advertised or more. For your average joke gym dumbbell work it should perform fine. Its about 10 HOUR!