"8"" Size - Smaller than the original 13"" wall clock, this item includes a built-in stand so it can be placed on a desk or shelf, or easily hung on the wall using the keyhole opening on the back From the maker of the Original Singing Bird Clock this 25th Anniversary Edition features enhanced artwork with remastered bird sounds on the hour Clock ships in detailed and informative giftbox packaging Bonus Field Guide is included providing educational information of each of the birds depicted on the clock Built-in light sensor ensures that sounds turn off when the room is dark Clock is framed in Matte Green plastic, requires 3 (AA) batteries(not included)"