So easy to use and so many to choose from. They fit perfectly and display the same level of quality I?ve come to expect from Keen footwear: superb. I bought the same mouse to keep for my office. These shoes were absolutely adorable and looked great on my little one and were easy for him to walk in as a new walker. Neither works satisfactorily. For your average joke gym dumbbell work it should perform fine. Also, I noticed some reviews mention the button backlighting does not stay on long enough. I wasnt impressed with the music quality, though it was crisp and clear. If this is the level that adults are reading and finding enjoyment from, then our educational system is failing. Very good price considering what other sellers want for the same unit.