1、Double Head Lock: The door needs to swipe a card or mechanical key to unlock, go out must swipe a card or mechanical key to unlock, high security. 2、Silent Unlocking: The battery lock uses a silent motor, and the operation of unlocking the lock is quieter and noiseless, won't disturb family or neighbors. 3、Wiring Free Design: The lock needs simple installation, no wiring trouble, with mounting screw package, fast installation, no professional technology is required. 4、Anti Theft Function: Swiping ID card and battery wiring is a integrated design, enhance security, protect your property safety, with a high anti theft performance. 5、Wide Range of Applications: Wiring free lock can be installed to home, can be opened in two ways, by swiping a card or using a key,very convenient.