Changzhi Technologies Co., Ltd. is a subsidiary company of the J-TEK Incorporation or JTI, Taiwan. Our company is a high-tech equipped enterprise specializing in researching and manufacturing of Bluetooth headsets and related Bluetooth products. Meanwhile, as a subsidiary company of JTI, we take this advantage to promote laptop batteries and related products. Experts from Mainland China and Taiwan area in Bluetooth domain gather together as a team in our company, in a bid to strengthen the force by virtue of their affluent experiences in the R&D of radio frequency products and their pioneer philosophy of product designs. Established in 2004, our company has obtained great achievements, some of which can be epitomized through the unstoppable growing scale and booming business. ISO certificate: we have got the ISO9001:2000 certificate issued by SGS, authorized by UKAS, please see the