The Sennheiser RS 170 Headphones feature a completely wireless system to bring you extremely portable high quality headphones, don`t let the wireless fool you though, the Sennheiser RS 170 Headphones still deliver the highest possible quality by utilising Kleer`s uncompressed digital wireless audio transmission. This effectively enables you to be up to 80 metres away from the transmitter (whilst still in line of sight) and still receive the same high quality audio that we`ve come to know and love from Sennheiser products."
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