Keyless Indoor Door Knob with Keypad (Single-Sided), Electric Coded Door Lock, 5s Auto-Lock, 4xAA Alkaline Batteries(NOT Included), Pin Code Door Knob for Bedroom, Home, Office, Black

Stylish Yet Secure Keyless Entry Door Knob With Lock. The inverted droplet shape rotary knob has a texture and design optimized for long term grip comfort; The main structure, made by tested Zinc Alloy materials, delivers the robust and sturdy construction, enabling it to handle intensive day-to-day use; fit 4 x AA batteries inside, up to 2 years of battery life; Sweat & weatherproof design keeps this electronic door knob intact despite all manner of unexpected situations

Simple Installation. Installation is a breeze on doors with standard backsets from 2 ⅜ inches up to 2 ¾ inches, and door thicknesses up to 2.5 inches. All you need is a Phillips screwdriver (for retrofitting) or a drill (for new doors without a cutout) to get this keypad door knob installed for your bedrooms, etc

Easy to Program. A convenient alternative to traditional keys. Manage 1 administrator code and up to 50 passcodes through a single keypad. Ideal for various settings like room rentals, housekeeping, offices, storage rooms, bedrooms, and dormitory management. Suitable for enhancing security and access control in multiple scenarios

Advance Safety. By default, this door knob automatically locks 5 seconds after being opened. However, when there is a need to leave the door unlocked for a while, simply activate the Passage Mode; Turn on Silent Mode if you don't want others to hear any feedback from it; Anti-prying technology protects your code from prying eyes. You may enter up to 20 digits, including your own code, to unlock the door knob

Emergency Backup Solutions. Our Door Knob instantly via a power bank using its built-in Type-C port, or use the 2 included backup keys if the battery dies. Great option for your home

Our Door Knob takes indoor room security to the next level. The robust and stylish body is constructed by rigorously selected Aluminum and Zinc Alloy materials. Unlike any traditional door knob, it enables you to manage up to 50 passcodes opening up multiple possibilities for various use cases. In addition, settings such as Passage Mode, Auto-Lock, and Anti-Peep passcode deliver ultimate convenience for day-to-day use. With our power-saving technologies, 4 AA batteries are able to provide up to 2 years of battery life. You may finally be able to put your keys away and use them as backup.