Promise Crib Mobile Music Box, 35 Melodies Electric Baby Music Box, Imitation Wood Music Box [Sleep Aid]: 35 lullabies to soothe your baby to sleep with a sweet and beautiful melody. Your little one will love playing with the music box in their crib, making them happier. [Enhance Your Baby's Hearing]: Helps soothe your crying baby and improve their perception of music. The crib music box plays a light sound while your baby sleeps, stimulating your baby's auditory and tactile senses. [Easy to Install]: This crib music box is designed to hang on the crib's fixture and is easy to install. You can hang the small plush doll on the lower hook. [Fine Workmanship]: The crib music box features simple workmanship and design to attract children and help them learn about music. This imitation wood manual swing music box does not include a battery. You need to purchase and install the battery, then manually turn the knob to play the music box. See our last image for installation instructions and detailed guidance. [Powered by 2 Batteries]: The electric crib clock is powered by 2 AA batteries that automatically turn on and play the melody. It's an ideal gift for friends, family, babies, children, boys, and girls for Easter, Children's Day, Valentine's Day, Thanksgiving, Halloween, Christmas, or New Year's. Note: There may be size discrepancies in the product you receive due to manual measurement. The product you receive may differ slightly from the image due to different monitors. Actual quantity delivered: 1 piece(s) 100% Satisfaction - Our customers are our priority. If you encounter any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.