I remember when I first started working in this industry, one of my first jobs was to review a pair of wireless RF headphones from some low-end Chinese manufacturer. They were terrible. Interference that manifested itself as random bursts of static blasting through the headphones, they showcased both the need to buy better quality, and the shortcomings of RF technology as a wireless audio standard. These new Sennheisers are all digital though, which should mean static is a thing of the past.
There are three models in the new lineup (RS 160, RS 170 and RS 180), all of which use Kleer transmission technology, which transmits digital audio signals without compression. Each model has a different range with the RS 160 reaching 20 metres line of sight, the RS 170 reaching 80 metres line of sight and the RS 180 giving you a 100 metre line of sight radius.
Both the RS 160 and RS 170 are closed headphones, with the latter offering dynamic bass boost and a switchable surround sound mode for home cinema purists. The RS 180 are open style headphones which have a range of customisable audio options to get the best possible sound.
All three headphones will hit shelves next month, starting at $350 for the RS 160, $450 for the RS 170 and $600 for the RS 180.