1、Advanced Security: The electric control doorbell intercom door lock uses wire drawing technology and dual head double lock function to provide excellent damage resistance and protect the safety of the building. 2、Smart Control: The electronic doorbell intercom door lock is suitable for building intercom system, which can realize remote unlocking and management functions. 3、Wide Application: Designed for building doorbell intercom system, the electric doorbell intercom door lock is very suitable for rental houses and security doors, to protect family and property security. 4、Durable Materials: Doorbell intercom access electronic door lock is made of premium materials, durable and reliable, high strength and wear resistant, having long service time. 5、Easy Installation: The doorbell intercom access electric door lock has quick and easy installation process, suitable for DIY installation or professional use. 1 x Lock 1 x Lock Core13 x Screw3 x Key1 x Lock Ear2 x Lock Cover1 x Manual Item Type: Electric Control Doorbell Intercom Door LockMaterial: Iron Drawn WireWorking Voltage: 12V