This lead does everything I wanted, unlike some cheaper leads that I've seen reviewed from other suppliers.
My ipod is a 160GB classic. I've tried the lead with a Gear4 dock, a Bose portable dock, a Vita R2i and a Vita R4. These last 3 have remote controls, and the remotes still work for all the basic ipod functions when the lead is in use, just the same as when the iPod is plugged directly into the dock.
But it is SO MUCH EASIER to use the lead so you can have the ipod in the palm of your hand, then you can use ALL the functions of the ipod in comfort, while still listening to music from it.
The lead also charges the ipod, which won't happen if you connect it to a dock using an audio lead from the headphone socket. I haven't tried the video capabilities of the lead yet as I still haven't figured out how to get videos onto the ipod.
Actually, I bought 2 of these leads so I could keep them plugged in permanently to 2 of my docks, as these are a bit inaccessible to keep plugging and unplugging the ipod, and it is so much easier to plug the ipod into the end of the lead instead. I have also discovered that the leads still work when both are connected together, giving a 2 metre extension if required.
I thought that the extra postage for buying the 2nd lead was excessive so I contacted Proxima (via Amazon messaging) and they kindly reduced the postage for the 2nd lead. They arrived very quickly too.
Don't forget you have to squeeze the clips on the plug to get it out of the ipod; this is a good feature as it won't fall out accidentally.