ContentsRead Me First............................................................. 2Getting StartedLaser ........................................................................... 5Warranty Policy .......................................................... 5Safety Precautions..................................................... 6Requirement for Use.................................................. 9Confirmation of Accessories ................................... 11Names of Parts and Their Functions...................... 12OperationInsert/Remove a SIM Card((((JT-H300HT-E3)))) .. 15Insert/Remove a microSDHC Card ..................... 18Replace a Battery Pack......................................... 21Charge the Unit ...................................................... 23Scan a Barcode...................................................... 24Scan a 2D code....................................................... 26AppendixAbout Connection with Another Device................ 26How to Care ............................................................ 27Troubleshooting..................................................... 28How to Deal with Troubles ................................... 29Specifications......................................................... 30Before operating this product, please read these instructions carefully and save this documentfor future use.Operating InstructionsOperating InstructionsOperating InstructionsOperating InstructionsHandheld ComputerHandheld ComputerHandheld ComputerHandheld ComputerModel No.