Danalock™ motorized lock for European profile cylinder. Includes adaptor for special europrofile cylinder (Special cilinder is needed to fit the Danalock™ motorized lock on a door, not included. Please refer to us for further information). Technology: Bluetooth + Technology compatible with Apple™ Homekit. Batteries not included (4 x CR123A Lithium batteries are required, ref.: SP01908-400, not included). Silver finish.