Auto News: Upgrade your old car experience with this hi-tech legal car accessory: Keydroid luxury smart keys. Keydroid’s luxury touchscreen smart key is an accessory that helps you convert your old and basic car key into a hi-tech avatar that also enables additional convenience features for the user. The smart key system upgrades your vehicle’s lock/unlock function to a proximity lock system. Keydroid offers several different key models to suit the preference of different car owners.