Description : Electric Control Access Mute Lock XJL-SJ120 For Video Door Phone Dimension : 126 x 105 x 40.5mm Input Voltage : 9-12V Application Methods : Electricity Lock Working Life : Can reach more than 200000 times It is MUTE electric lock， much more quiet than the other normal electric lock when open. With keyhole : can open the lock with key or access system. Without keyhole : can only open the lock with access system， like ID card or video door phone. Package included : 1 x Electric Lock body 1 x Electric Lock core 3 x Keys (With keyhole) 1 x Pack of screws 1 x User manual in English Details pictures :