Please see attachment picture. There is a black-box-battery-compartment in the middle of the picture. That's means that my baby has been sitting on 3 AA batteries when he is playing with the toy. I'm always afraid EMF/radiation from electrical source. My baby has been playing with this toy for more than 6 months. This is so close to his reproductive system, now I'm worry about potential adulthood damage. What do you guys think?