Completely keyless design means there's no keyhole to pick Use a 4-6 digit access code instead of keeping track of keys Holds up to 19 access codes for trusted friends and family Pre-programmed with 2 access codes for immediate use Installs in minutes with just a screwdriver (no wiring needed) Limited lifetime mechanical and finish warranty, 3-year limited electronics warranty Down-lit touchscreen 9V alkaline battery with low battery indicator Touchscreen accepts access codes during power outages Style Knob Combination Bore Hole Diameter 1 inch Cross Bore Diameter 2-1/8 inch Throw Length 1 inch Projection 2-1/3 inch Includes Complete Lockset, Drilling Template, Installation Instructions, Hardware Strike Width 0 inch Strike Height 0 inch Strike Style Round Corner Minimum Backset Size 2-3/8 inch Maximum Backset Size 2-3/4 inch Minimum Door Thickness 1-3/8 inch Maximum Door Thickness 1-3/4 inch Manufacturer Warranty 3-Year Limited Electronics Warranty; Limited Lifetime Mechanical Finish Warranty year WiFi Compatible No Bluetooth No Guarantee From EP Household No Ordered Products,Full refund. Return Policy: 1.Buyers are responsible for return shipping fees,no exceptions. 2.It's buyers' responsibility on checking return policy and shipping policy before final payment. To Bulk Buyers: Contact us for discounted price on bulky purchases. Notice: More than 1 item is Bulky Purchases. Shipping Policy: USA 1.All items are shipped to our customers via USPS or UPS. 2.Free Shipping(Economy Shipping) Limited to USA including AK,HI,PR,VI,GU ect. 2.Economy Shipping via USPS usually takes 1-5 Business Days including Saturdays. 3.Economy Shipping via UPS usually takes 1-5 Business Days excluding Saturdays. Worldwide 1.All items are shipped to our customers in other countries via USPS or UPS. 2.Contact EP Household for accurate international shipping fees. 2.Economy Shipping via USPS usually takes 1-15 Business Days including Saturdays. 3.Economy Shipping via UPS usually takes 1-15 Business Days excluding Saturdays. Disclaimers: 1.EP Household has no responsibility for physical injuries,emotional injuries,and mental injuries of the buyers or the users,if the buyers or the users got hurt in use of this product; 2.Any legal cases/claims filed against EP Household must be solved and negotiated via court of arbitration,no exceptions. 3.EP Household has no responsibility for the damage and/or loss of products/items ordered from EP Household if the buyers took the privilege of FREE SHIPPING on his/her order(s). 4.Cancellation on the customers' order(s) is at the discretion of EP Household,which means Customer(s)' order(s) placed will NOT be charged from EP Household's end until EP Household makes the shipment of the customer(s)' order(s). 5.EP Household didn't,doesn't and won't make any promises on price match with other companies or businesses. 6.Photo may have been enlarged and/or enhanced. 7.EP Household reserves the right to modify Transaction terms and Disclaimer Terms in part or in its entirety at any time without notice, for any reason at its sole discretion. 8.International Buyers are responsible for Customs Clearance Fees of their own countries,no exceptions.