The hottest new home entertainment technology to appear since the introduction of Blu-ray has got to be 3D. Most of the major brands have their own systems on the verge of launch, but Samsung was the first to make it into Australian retail electronics stores.
Making their debut at the recent IFA show in Berlin, the three new, wireless headphone sets from Sennheiser use 2GHz, lossless transmission technology - dubbed 'Kleer' - to provide the highest quality wireless audio in your home, according to the company.
The transmitters are very small, with the unit for the RS160 (pictured, $350) tiny enough to be used with an MP3 player or phone. Styled in black, silver and anthracite, the headphones house dynamic transducers with neodymium magnets that produce a frequency response of 18-21,000 Hz and sound pressure level of 110 decibels.

The Kleer technology claims a signal-to-noise ratio of 85 dBA and will transmit up to 100 metres for the high-end model, the $560 RS180 (up to 20m for the entry-level RS 160 and 60m for the RS170, which is priced at $450.
The lower two models are 'closed' type units, while the RS180 is 'open', aimed at 'sound purists'.
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