The length of the bear is about 20cm/8 inch. It needs 3 AA batteries (battery not included). There is a button on the LEFT LEG of the teddy. Pls find it and press， then it will light and change different colors. <br /> <br />Quality is 100 guaranteed. If you don't like it， we will give you full refund! <br /> <br />A best gift for Xmas， children's birthday， wedding， valentines， girls， and friends.