From the third photo, pressing the bottom right button of the four buttons located in the right square allowed it to turn on and off. Pressing the buttons in the upper left, etc., played a melody. While it was on, pressing the other buttons didn't seem to do anything, and I wasn't sure how to operate it. I received this as a gift, and I don't know if it's broken or if it might be fixed by replacing the batteries. The end of the chain is detached. For now, the power turns on as shown in the photo. I am looking for someone who knows more about this or can repair it. Please refrain from purchasing if you are overly concerned about the condition. Please consider that the batteries in this item could die at any time. I may remove this listing suddenly. If you are interested, please purchase it as soon as possible. I will wrap it in bubble wrap and ship it in a Yu-Packet Mini envelope.