Walkman is a Sony brand tradename originally used for portable audio cassette players in the late 1970s. In the 2010s, it was used to market Sony's portable audio and video players as well as a line of former Sony Ericsson mobile phones. The original Walkman actually introduced a change in music listening habits by allowing people to carry recorded music with them and listen to music through lightweight headphones. Owners of the Walkman were able to take back their "lost" time, commuting for example, and turn it into a pleasurable experience, or add a soundtrack to their urban surroundings. It was the privatization and personalization offered by the Walkman that lead to its success.