ShanDi Digital Technology Limited Company is a research -development,produce and sale combine high tech comany .Blueangel brand builded in 2002 ,maily produce external memory and video products. Monthly output more than 40000 ,become the biggest manufacturers of MP3 and hard drive at the end of 2004 in China. The kind of Blueangel'MP3 and hard drive also sales to Europe ,USA ,UK and so on,is well known to all over the world. We have a top professional team to produce the HDD multimedia player and work on them all the time ,hope it can bring to you a high comfortable and enjoyable life. at the same time , welcome to join us.we also have the external battery and speaker.welcome to visit our website :www.blueangel.com