A pager is a wireless telecommunications device that receives and displays numeric or text messages, or receives and announces voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter.
Other Shipping Options. If you choose to ship via Priority Mail in something other than flat rate packaging, youâll pay a rate based on the weight of the package and the zone you are shipping to. You can use your own packaging or USPS non-flat-rate packaging, but the packages must be clearly marked as Priority Mail.
Priority Mail is faster and MAY contain personal information; it is not subject to postal inspection. In general, Priority Mail cost more; but the use of Flat Rate envelopes and boxes may make it less expensive than Parcel Post. It cost less to purchase Delivery Confirmation for Priority Mail. Also, if a Priority Mail package is undeliverable, there is no charge (postage due) to forward it or to return it to the sender.