1、High Security Protection: The electronic deadbolt door lock provides high level security for your door with an invisible lock, making it near impossible for intruders to pick or break. 2、Convenient Remote Control: The lock can be easily and swiftly unlocked using the two included remote controllers, providing a convenient option to traditional keys. 3、Easy Battery Replacement: The system runs on two AA batteries which can be easily replaced without the need for any tools, ensuring the lock won't stop operating unexpectedly. 4、Simple Installation: The setup of this lock is quick and straightforward, and it can be installed without requiring professional assistance, saving you time and cost. 5、Versatile Use: Suitable for both residential and commercial buildings. Whether it's your home, office, warehouse, or basement, this lock promises a perfect security solution. 1 x Electric Control Lock1 x Lock Ear1 x Lock Cylinder3 x Key10 x ID Keychain1 x Lock Card1 x ID Card Reader2 x Screw1 x Square Plate1 x Round Ring8 x Screw2 x Remote Control Item Type: Electronic Deadbolt Door LockMaterial: Stainless steelUnlock Method: Swipe card, keyLock Power Supply Mode: 1.5V AA battery x 2 (not included)Remote Control: 27A 12V 30mAH dry battery (1 battery each remote control, built in)