Teng Teng Teng Teng !!! Its a Portable Gaming System - Nintendo DS Lite (white) ! This is the first Portable Gaming System in my life.
Here attached the description for Nintendo Ds Lite (Wikipedia)
The Nintendo DS Lite (ニンテンドーDS Lite, Nintendō Dīesu Raito?) (sometimes abbreviated DSLite) is a dual-screen (hence the name) handheld game console developed and manufactured by Nintendo. It is a slimmer, brighter, and more lightweight redesign of the Nintendo DS, designed to be aesthetically sleeker while taking styling cues from the Game Boy Advance SP, and to appeal to broader commercial audiences. It was announced on January 26, 2006, more than a month before its first launch in Japan on March 2, 2006 due to overwhelming demand for the original model. It has been released in Japan, Australia, North America, Europe, New Zealand, Singapore, and defined regions in South America, the Middle East and Korea. As of September 30, 2007, sales of the DS Lite have reached 34.93 million units worldwide.