Smart Door Lock - OLED Display

Smartphone APP - Unlock/Lock via TTLock! Setting the auto lock function, no worry about forgetting to lock the door. Keyless Entry Door Lock - More convenient without a key! Use the passcode to unlock and no worrying about bringing your keys. Setting your own passcode or generate a Timed, Permanent, One-time or Customized passcode. Make it more flexible for children, friends or others who wants to enter. Electronic Touchscreen Keypad - Safer high quality & solid. Intuitive OLED display, zinc 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.