Medifine Electronic Co., Ltd, is one of the leading manufacturers and suppliers of electronic devices in China. Headquartered in Shenzhen, a major center of electronics where talent and productivity converges, Medifine has been devoted itself into developing, manufacturing, and marketing high quality electronic devices and providing excellent services from its foundation. CoopWin implements both ISO-9001 and ISO-14001 standards throughout the design, manufacture, and service stages.

Medifine now has two well-established business segments: Developing and manufacturing electronic devices, OEM/ODM services. Thanks to the market-oriented strategy and continuous efforts of our people, Medifine has built a strong win-win based supply-distribution-marketing chain and enjoyed high reputation among our partners. CE certification makes our global market share improved year by year with market presence in over 60 countries worldwide.

Now we are mainly design and manufacturer mobile power pack, The Mobile Power Pack is an innovative, rechargeable external battery pack, perfect for powering a cell phone, PDA, MP3 player or other small device. It's lightweight and small enough to fit in your pocket, as well as simple to use - just plug in the USB charging cable for your device (sold separately) and get up to 55 hours of runtime for your iPod Nano, and up to ten hours of talk time for most cell phones (depending on the operating mode of your device). The LED status bar lets you know how much charge you have left with the press of a button, and its state-of-the-art lithium-polymer battery technology delivers the most power and fastest recharge times, all in a pocket sized package. Now you have a stylish way to make sure your mobile devices never run out of power again.