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The Walkman S Series is a portable music player designed and developed by Sony. The model made its debut in Japan in the fall of 2008 and later was launched in North America Europe and the rest of Asia. The first model to be launched was NWZ-S543/B and had a capacity of 4GB. It had a 2.4 LCD screen with a resolution of 320 X 240 pixels.A 8GB model (NWZ-S764/B) was launched later. Although it had a smaller screen of 2 it had a Bluetooth connectivity and a greater battery life.
