11. To demonstrate the melody and motion, simply press the Monitor button (located either on the back, the side of the clock, the lower front of the clock, or as a pull-string below the clock). Pressiing the button repeatedly while a song is playing, will cycle through the entire selection of songs.
First Class Large Envelope/Flat Mail. Minimum size: 6 1/8 inches tall or 11 1/2 inches long and 0.007 inches thick. Maximum size: 12 inches tall x 15 inches long and 3/4 inches thick. Maximum weight: Up to 13 oz.
On the other hand, within First Class Package shipping, there is a package type we refer to as a Thick Envelope (3/4). It can be used to ship documents or thin objects that are less than 3/4 thick. It can be a little more expensive, but it includes tracking.