Are the batteries in the Personalized Singing Stuffed Animals and Kids Alarm Clocks replaceable?

Each of these items requires 3 AAA batteries.  The items are originally shipped with 3 new batteries.  The stuffed animals have an opening on the back that is closed with Velcro.  Open the Velcro and remove the sound box.  Use a small screwdriver to remove the battery cover, and then replace the batteries and the battery cover.    For the Children’s Alarm Clocks, use a small screwdriver to open the compartment door on the back of the clock.  Replace the batteries and battery cover.