Love this item. I used it to auctioneer and it works great! I walked about 200 feet from the base unit and it worked perfect. No cords, no wires- just batteries are needed. As far as The Twister Group, I couldn't be happier!! they sent me emails with tracking, it was shipped fast and no problems at all. Will buy from again- bookmark them!
I bought this Ipos dock to replace a more expensive one, that had the amplifier integrated directly behind the iPOD/iPhone in the wall. That design had the disadvantage of suffering from interference from the radio of the iPhone. The iPort IW 20 does not have thatb issue and works great with a separate amplifier. Wwell made, super easy to install and excellent sound quality. I used it with the black faceplate which snape right in. Only issue: Newer iPhones are too thin to have proper support from the wall behind them. I had to glue a piece of black foam rubber behind it to give it support. The adjustment range of the round knob behind the phone was not enough.
I needed a FW adaptor with Texas Instruments chipset to connect my Tascam FW-1884 audio interface to a PC, with Win7 x64 OS. I bought this Siig and I`m very satisfied with the result- works perfectly, no drops, no clicks, exellent performance.
( btw delivered to Bulgaria for 4 working days ;)