Brand Service—Shenzhen Bitune Electronics Co.,Ltd. was founded in 1995.We have been    devoted all ourself to the research and development about the management system of intelligence card-for-all for the past thirty years.Now it’s formed several mainlines which include access system, attendance system, patrol system,park-management system etc.Two big brands has been radicated:EGS and CASTLE.We have perfect quality guarantee system.and provide the best product and service with the mind that zeal, innovate, strict and highlyactive.

Marketing net — The products have been used in all parts of the mainland of China,Hongkong, Taiwan,also be used in some other country in Southeast Asia, MiddleEastmideast，South America etc.