Smart Remote Control Door Lock Electronic AntiTheft Keyless Bluetooth Induction Unlock Conditon: Item Type: Remote Control Door Lock Material: Zinc Alloy Color: As Pictures Shown Lock Body Parameters: Lock Body Size: Approx. 130 x 75 x 33mm/5.1 x 3.0 x 1.3in Remote Control Distance: Approx. 10-30m/32.8-98.4ft Power Supply: 4Pcs AA Batteries(Not Included) Work Temperature: -20℃-80℃ Work Humidity: 5%-60% Battery Life: About 1 Year, 10 Times a Day Unlocking Method: Remote Control Unlocking / Indoor Manual Unlocking / Emergency Unlocking/Spare Key Unlock Remote Control: The System is Paired with the Remote Control, and Only the Remote Control with Successful Code Pairing can Remotely Unlock the Lock Anti-Theft Performance: Anti-Technical Opening, Anti-Master Key Unlocking, Anti-Card Unlocking, Anti-Violent Damage, Anti-Tinfoil Unlocking Password Level: Encrypted Transformed Digital Signal, Unable To Decipher, Mutual Opening Rate is 0 Remote Control Parameters: Size: Approx. 60 x 32mm/2.4 x 1.3in Remote Control Function: Unlock/Lock Standard Configuration: 4Pcs Number of Operations: 300,000 Times Battery Parameters: CR2030 Button Battery, 27A/12V 230mAh (Built-In) Transmission Method: Frequency Conversion Signal Every Time to Prevent Duplication Battery Life: Replace Every Six Months or so Working Humidity: 5%-90% Capacity: The Remote Control Can Register up to 32