The bottom view of the Tecla Shield tecla support April 06, 2016 16:00 Updated Configuration Buttons (- and +): Select or change a mode prior to connecting with a device, or Once connected, increase or decrease the auto-scanning rate in supported modes, including iOS Classic Mode, iOS 4-Way Mode and Mouse Keys Mode. Related articles How do I know which mode to put my Tecla Shield in? How do I change which mode the Tecla Shield is in? How do I turn on the Tecla Shield? Comments 0 comments Please sign in to leave a comment.