A few years ago, this CK-7W kit set the pace, but it is now looking long in the tooth. However, it did what it said on the box, being simple to fit and easy to use, via the commendably small circular control knob which neatly combined call answer/end and volume. Voice dial performance was up with the best, but it still requires a separate speaker, and with no display, looks a bit pricey compared to some others.