OfficeOfficeRecorderPress , and select Office > Recorder to record telephoneconversations and voice memos. If you are recording atelephone conversation, both parties hear a tone every5 seconds during recording.To-doCreate a task listPress , and select Office > To-do to write notes andTo mark a task as completed, scroll to it in the To-do list,and select Options > Mark as done.To restore a task, scroll to it in the To-do list, and selectOptions > Mark as not done.CalculatorTo add, substract, multiply, divide, calculate square rootsand percentages, press , and select Office > Calculator.Note: This calculator has limited accuracy and isdesigned for simple calculations.