100% Keyless Convenient to use by phone with our Bold app. Wherever you are The Bold Smart Lock Cylinder has power with over 2 years’ battery life Carefree Bluetooth with two-factor authentication and additional encryption does all the work for you One you can trust Highest level of security with the SKG*** certification Protect your property Duracoremakes it impossible for burglars to enter with common methods such as drilling and pulling, Manufacturer: Bold Smart Lock