Working PrincipleThe creative music box is Use the metal base to capture spring, once gently rotated the clockwork to the right and then released, and the music will be playing.Turn on the switch at the bottom of carousel music box, and the light will light up and gradually change colors. music boxMechanical music box with a beautiful design, No battery required.Once gently rotated the clockwork to the right and then released, the music will be playing.Very easy to use;a perfect decoration in your room or living room. Perfect GiftExquisite mechanical music boxes for kids and adults, girls, spouse or yourself as a gift.Thoughtful present for your beloved girlfriend, women, wife, baby, daughter, mom, friend on birthday, New Year, Christmas, Valentine's day, Thanksgiving days, anniversary to remind her how much you care. the music box is a piece that can be used for birthday, baby showers, wedding, Valentine's Day, Mother's Day, Children's Day, Graduation, Thanksgiving, Christmas, New Year gifts.It's also the best companion gift for your families.When you are not with your loved ones or children, it can accompany them instead of you.Night on the bedside, for children it is the best sleep companion.With the gentle music, children can enjoy sweet into dreams. Spin music box Rotate with Nice Musicits sound power from spring.Just gently rotate the metal base to the right, then released it, and the beautiful music melody will play, very easy to use.Turn on the switch, the light is a slow, gradual bright light,and the warm gradual light can always create a friendly, romantic, and dreamy atmosphere. High-quality Hand-paintedthe music box is durable and can use for a long time.Color hand-painted and Spin music box hand-carved technology, exquisite music box and design.