The rs 160 is a two part system that combines the best wireless audio quality with a truly versatile compact transmitter for listening at home on the go or at the office this wireless headphone system consists of a pair of wireless headphones hdr 160 and a compact transmitter tx 160 which runs on ac or battery power to best accommodate your applications just plug and playthe transmitter39s compact size makes it a natural selection for automotive installs or in offices the rs 160 util