It was very easy to assemble, looks very nice love the color but the top is not very sturdy. Been using this for a week now and I find that it delivers as advertised. This extension only has 2 lines on the plug, so only 3 contact points: Ground, Left, Right. I am sensitive to "bright" headphones (where the highs or treble are too high and sound painful to my ear) and steer away from them as soon as I notice them. so i order an 7. Carrying case also charges the units and they hold battery all day. The removable insole is great to help cleaning. By the halfway point engagement begins to wane. The listing says it’s 24 inches wide, and it’s actually only about 19 inches wide. Now Im on the step to secure the kick plate.