HT1 1D Batch User’s Manual1.5.1 Using Function keysPress the key once, it will appear a blue symbol in the status bar atthe top of the screen. Then you can refer to the following table to execute thedesired function or input.Keys DescriptionReturnHomeMenuProgrammable key F1Programmable key F2Programmable key F3Left cursor keyUp cursor keyRight cursor keyDown cursor keyGoogle voice11 © 2018 unitech Electronics Co., Ltd. All rights reserved.unitech is a registered trademark of unitech Electronics Co., Ltd.