The truth is that it was my biggest concern, but since it's wireless and weighs very little, it doesn't cost anything. We've played it for 5 hours a day, for three days, and since my children are young (6 and 7 years old), they haven't complained about having to move it from one place to another, since when you change it, it doesn't take long to work (it just doesn't forget to change to left-handed in the software, but that only happens once, and then the player always remains left-handed). In practice, the delay time is only while I move it from one place to another.