My old Speedcross 4s finally gave up the ghost after 3 years. The only neat features are a USB passthrough and polling rate switch, which are pretty standard among keyboards in this range. Doesnt sound good at all when plugged into my stereo. I dont know if this is because they have sat too long in the box on a shelf or if they would have done this when they were first made. I have a very narrow foot and the this pair of sandals is one of very few that actually fit. There is no skipping like some others I’ve had. Thats a lot of unnecessary waste! Uso Good Notes, OneNote, Notas. If you plan on getting these for kicking around the house, they are going to dig up the floors a bit. I then decided to take a chance on a “like new” at a reduced price.