Blue’s Learning Letters Mailbox is a great way to learn your ABC’s. Mailbox entertains children with questions about letters as fun images flash across the LCD screen. 3 modes of play - In mode 1, Mailbox will identify a letter pressed as letter and Blue appear on the LCD screen. In Mode 2, Mailbox will sound out the letter pressed as the letter and Blue appear on the LCD screen. In Mode 3, Mailbox asks the child to find a letter by it's sound or location and pawprints are shown on the LCD screen. It’s learning the Blue’s Clues way!