Keyless entry: no longer worry about losing or forgetting the key. With a backlit, responsive keyboard, you can easily unlock doors in the dark. Automatically lock the door 10 to 99 seconds after closing, to protect your home. Smart and convenient: This keyboard lock can write 20 personal passwords of 4-10 digits for your family and friends, and quickly and easily share one-time passwords with your pet nanny, delivery clerk or housekeeper. The alternate physical key is always available for unlocking. Security latch: Our keyless door lock is a security butler, made of solid lock cylinder and high-quality metal structure, with IP54 waterproof, durable, anti peeping password, low power indicator light, and long battery life, which can ensure that it can work several times a day for more than 300 days. Home style: The oil polished bronze in the retro style and the satin nickel silver veneer and oval design in the modern style make your door match perfectly with the traditional rural residence and modern urban apartment.