Note: This bluetooth smart door lock could work with single open glass door, with or without frame; And double open with or without frame(for security reason,need to use ground bolt for double open door); Also could work with sliding door; For right open door, press *#75# to filp over the panel numbers; Press to pair the remote, please press *#，enter into system , input the admin password, and then press any remote control button to pair the lock > 1; This is bluetooth lock, The App can only unlock the lock within bluetooth distance(within 10m) ; 2;If you want to remote unlock the lock from miles away, tuya bluetooth hub or tuya multi-mode hub is needed; 3. Due to security reason;The bluetooth lock can't work with Alexa or google Home even hub is added; This bluetooth smart door lock could work with single open glass door, with or without frame; And double open with or without frame(for security reason,need to use ground bolt for double open door); Also could work with sliding door; Package include: Door lock(without battery) 2 Keys; 2 Cards; 1 Remote control; 1 User manual; App:Smart Life/Tuya Smart Powered by 4pcs of AA battery The Type C ports is only for emergency charging only; User QTY:300