A postage meter is a device used to print postage directly onto envelopes or labels. It allows businesses and individuals to send mail without needing to buy traditional stamps. The meter calculates the correct postage based on the weight and destination of the mail, ensuring accurate payment to the postal service. These devices are often used by companies that send large volumes of mail, as they can save time and streamline the mailing process. Many postage meters are connected to the internet, allowing users to refill postage and track their mailings easily, enhancing efficiency in mailing operations.