Feature:1. * Dual core and dual system, open faster, response quicker.2. * Two different ways to open and close, with the remote control and the spinning roulette.3. * Easy and firm installation with the external mounting plate.4. * Remote controls with digital conversation system, it cannot be decoded or duplicated. Anti-theft and bring you safety.5. * Made of stainless steel, provide long service life, very strong and steady. Power saving and low battery consumption.6. * Once the main batteries are depleted, you can use the backup battery, no worries about dead battery and be locked outside.7. * The bottom panel design makes installation easier and more stable.8. * Ideal for office, home, hotel, anti-theft door, corridor door, wooden doors, garage door, etc.Specification:Features:* Dual core and dual system, open faster, response quicker.* Two different ways to open and close, with the remote control and the spinning roulette.* Easy and firm installation with the external mounting plate.* Remote controls with digital conversation system, it cannot be decoded or duplicated. Anti-theft and bring you safety.* Made of stainless steel, provide long service life, very strong and steady. Power saving and low battery consumption.* Once the main batteries are depleted, you can use the backup battery, no worries about dead battery and be locked outside.* The bottom panel design makes installation easier and more stable.* Ideal for office, home, hotel, anti-theft door, corridor door, wooden doors, garage door, etc.Note: The actual product has an automatic locking switch, while the manual is universal and temporarily does not display a switch.Specifications:Remote Control Distance: 0-20m(open space)Power Supply: Power Supply: 4* 12V 27A Battery for Remote Control (included), 1* 23A 12V Battery (included) & 4* AA Battery (Not Included) for Door LockUnlock Current: 120mAhBattery Life: 4 batteries last for 16 months in standby modeWorking Temperature: -10-60Working Humidity: 20%-80% Lock Tongue Moving Distance: 22mmMaterial: Stainless Steel Item Size: 137*77*37mm/5.39*3.03*1.45inItem Weight: 67g/23.67ozPackage Size: 23.0*17.0*6.5cm/9.05*6.69*2.55inPackage Weight: 1056g/37.24ozMatters need attentionUnable to turn off sound.Package List:1* Door Lock1* Bottom Gusset Plate1* Door Bolt Holder1* Screw Kit1* 23A 12V Battery4* Remote Controller1* English-Chinese User ManualPackage List:1* Door Lock1* Bottom Gusset Plate1* Door Bolt Holder1* Screw Kit1* 23A 12V Battery4* Remote Controller1* English-Chinese User Manual