Shenzhen Zhanweixun Technology Co., Ltd. (HONG KONG KARASNN LIMITED. ), incorporated in 2003, set foot in mobile phone industry in 2007, is dedicated in developing, manufacturing and after-sale service of innovative and multifunctional mobile phone. We put "HERO Series" products into the market in 2009, which have been one of the brands that take up the largest share of the WiFi and TV mobile phone market. We are scheduling to launch mobile phone with GPS and Digital TV that leads the market trend in the following year.

We have built up a professional R&D team that has over 20 technicians, most of them have more than five years extensive experience in famous companies such as Huawei, etc. Their expertise on outlook, stucture and main board design, software development, interface design for user and all production software development has been our main force and technology back-up. We have offered OEM/ODM service to many famed brands in South America, North America, Southeast Asia and Europe such as POWERPACK, ROADSTAR, ACE, MYPHONE, etc., which all have established firm business relationship with us.

With extraordinary production capacity and strict QC system, we now have 8 production lines, which allow the output of around 15, 000 pieces per day. We have been striving for Zero Defects on our products with our QC system that covers the overall supply chain system from pre-production to production to post-production.

With honesty as our tenet, innovation as our motion and service as our aim, we have endeavoured to increase the performance/price ratio of our products and meet different needs from our customers.