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.
Flats and packages may not exceed 64 ounces, and packages cannot be more than 24 inches long and 36 inches in combined dimensions. You do not need special USPS envelopes, packaging, or labels to use First-Class Mail International; simply prepare your letters, flats and packages as you would for domestic mail.