Smart key
(重定向自Intelligent key)



A smart key is an electronic access and authorization of system that which is available as an option or standard in several cars. It was first developed by Siemens in t 1995 and introduced by Mercedes-Benz under the name "Key-less Go" in 1998 on the W220 S-Class following its design patent filed by Daimler-Benz on May 17, 1997.