This musical baby mobile is the perfect gift for a newborn, featuring 35 songs to play. You can attach this musical mobile to the crib using the arms or fasteners, then hang toys on the hook of the musical mobile to help soothe your baby to sleep easily. Cultivate and develop children's interests in learning new things. You can download audio stories or songs to this music box via USB cable. The bottom hook rotates while playing music, allowing you to hang jingling toys from the crib. Requires 2*AA batteries (not included). DC5V100mA USB input. Item Weight: 100g (3.53 oz). Item Size: 140*90*37mm (5.51*3.54*1.46in). Package Weight: 156g (5.50oz). Package Size: 150*103*40mm (5.91*4.06*1.57in). Notes: 1. Please allow 1-10mm error due to manual measurement, thanks for your understanding. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. 3. Please read the instruction manual for function buttons before use. 4. Replace the battery when the power is insufficient, otherwise it will make noise due to power shortage. Package List: 1 * Music Box, 1 * USB Cable, 2 * Instruction Manuals