1. A speech output device comprising: a plurality of portable speakers; an interface board including a memory that stores a language table that identifies which language is used with each of the plurality of portable speakers; the interface board being configured to acquire print data for printing a ticket or a receipt; convert part of the print data to first text data in a first language, convert the first text data in the first language to second text data in two or more second languages in accordance with the language table, generate speech data in the two or more second languages based on the language table, and output the speech data to two or more of the plurality of portable speakers in the respective identified language(s) based on the generated speech data, the generated speech data pertaining to customer preferences being output at a higher volume than speech data corresponding to product name; and a print mechanism configured to print the ticket or the receipt based on the print data.