No battery: Hand-cranked music boxes keep turning the handle to play music that doesn't need battery, the crank is easy to move, and children can also do it easily. Playing the song at a steady but slow pace lasts about 30 seconds, then you can repeat it! Classic design: The delicate surface of this wooden music box uses antique hand carving, and the inside of the wooden box is engraved with "You are my sunshine" - for that special someone who is a ray of light in your life. Give her this music box and let her hear your inner voice. Good size: The mini music box measures 6.4x5x4.2cm (2.5x1.96x1.65inch), portable and lightweight design allows you to carry it in the palm of your hand, in a small bag, on your table. room, and more. Slightly smaller than a credit card in your hand, it slips easily into your pocket. Reliable Material: This music box is made of three layers of solid wood shell resistant to metal pressure and movement , the texture and fragrance of wood can make your music box more textured and delicate, while the metal mechanical movement can support 100,000 times playing songs, sturdy and durable, not easy to run and damage. Holiday gift: This classic special music box with meaningful message engraved inside is a perfect gift for wife/kids/boyfriend/girlfriend, perfect for Birthday, Wedding, Mother's Day, Christmas, Father's Day and more. Valentine's day.