For Interior Doors, Milocks Offers The Xkk-02Aq Digital Door Knob Lock With Product Details This door lock is great for bedrooms, closets, storage rooms, and many other interior doors throughout your home. No need to carry keys, share keys, or make extra copies of keys. Simply add and delete codes as needed. You will wonder why you didn't buy a keyless door lock sooner. Most importantly, this lock is a direct replacement for most door knobs on standard door prep. The latch is adjustable to make sure it fits the widest range of applications. No handy man required, installation is just as easy as any other lock. Keyless keypad entry - add up to 10 keypad users Remote control entry - add to 10 remote controls Multi-lock control - 1 remote can be programmed to multiple locks Easy programming - simple keypad and remote programming procedure adds or deletes users in seconds Smartphone control - smartphone compatible using insteon home automation system Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.