My son received this clock as a gift. It performed normally for about one week and then abruptly stopped making any sounds. The lights and clock both still work fine. I have tried changing the batteries. There is a rattling sound inside the clock as though something is loose, but it is deep inside the clock. Please help. My son is very disappointed by the poor quality of this clock. Thank you.

Audio Players & Recorders - Wesco - Star Wars R2d2 Projection Alarm Clock