The RS 160 is a two-part headphone system, 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 utilizes Kleer's uncompressed digital wireless audio transmission. It offers an effective range of 20m (line of sight), and can serve up to four pairs of headphone.
I had bought a less expensive set of a competitors brand that claimed it would transmit 60 feet, that was wrong they would not transmit 15 feet without the sound dropping out. These work fantastic and I have even been in a different part of the house and they would work 90% of the time, occasional sound drop out if too far away but in the same rood absolutely flawless unless the battery is weak.
I would not hesitate to buy another set if needed, you can also buy additional headsets to work on the same transmitter.
Like they always say, you get what you pay for and it is most definitely true in Wireless headphones!