The RS 160 is a two-part system that comes with wireless headphones, powered by a couple of NiMH batteries and a transmitter that connects to your output device. It’s very simple to set up as the whole system is plug and play. This compact and portable transmitter utilises Kleer's uncompressed digital wireless audio transmission. It offers an effective range of 20 m (line of sight), and can serve up to four pairs of headphones. Soundwise, the bass delivery is rousing and full-bodied while the closed, snug fit around your ears effectively isolates outside noise.