SP1(silver prologue one) is a high quality ear-canal headphone with hi fidelity sound quality to provides you a highly enjoyable "on the move" listening experience
Wide selections of eartips are available to eansure pefect fit, unbelievable wearing comfort and excellent blocking of ambient noise.
SP1 is compatible and ideal to pair with iPod, iPhone,PSP,MP3,MP4,PMP,CD,MD and many other portable devices.
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