The search for the perfect set of wireless headphones is often one fraught in disappointment and annoyance. First you have to decide between two technologies: Radio Frequency (RF) and Infrared (IR). At the very first step of the decision to go wireless, you are making a compromise since neither is perfect. RF is often plagued by interference and IR requires line of sight between the headphones and the base station. IR headphones tend to be interference free, since good placement of the base station can ensure a good connection.



Link: Designtechnica