Smart Deadbolt, SMONET Keyless Entry Door Lock with Digital Keypad, Electronic Smart Locks for Front Door Bluetooth Touchscreen Lock Security, Remote Lock with Alexa and Gateway for Residential Home, Keyless Entry Door Lock - Touchscreen + Bluetooth + Key. Generate Permanent, One-time or Customized passcodes for guests. Support automatic lock to ensure the safety of your house. Remote door lock works with Alexa, google home (required extra G2 gateway, Sold separately)., Keypad Deadbolt Lock - This wireless door lock has Touchscreen keypad, alloy body, long battery life, 4pcs AA batteries can provide 5000 openings (approx. 6 months). For security reason, it will automatically lock for 5 minutes when enter the password incorrectly more than 5 times. Please make sure the size of your door meets the installation specifications, and the L/R side has different install method, you could follow the tips in video., Smartphone Door Lock - The operation of the APP or keypad will be recorded (except key), even entered the wrong password. Open the bluetooth close to the door lock or use the gateway (sold separately) to read the new record. You can Authorized Admin to your family(recipients need to download the TTLock and register an account), recipients can unlock via APP., Remote Sharing Password - You can remotely generate a One-time passcode to guests, long press and hold # for 2s for lock the door, no password required when they leave the home. No need to worry about getting keys back from them. Make it more flexible for children, friends or others who wants to entry., Professional Customer Service - 1-year warranty and free life-time technical support. Any question such as Installation or App problems(or for more gateway information) please feel free to contact us., ,