Qingdao Windaka Technology Co., Ltd. is a general buck the development, production and marketing of smart card, fingerprint, time attendance, palm vein access control, building intercom system, smart home, door phone, outdoor unit, fingerprint time attendance, hotel supplies, access control systems and other building intercom products based high-tech enterprise, the company gathered the domestic optical, palm vein, mechanical and electrical fingerprint algorithm and other aspects of talent, focus on the development of biometric technology and applications.