My kids got a Talking Tom toy in a kids meal which they quickly discarded. It had a slide switch on the back and a button on his belly. With the switch on, if you press the button, he will say one of 4 phrases. Also, if you clap or talk loudly, he will say one of 4 phrases. I decided to take it apart to see how it works. I've included a photo of the entire circuit - minus the metal strips that were used as switching devices. It's two button cell batteries, an IC with 5 pins, and a speaker. I'm curious what kind of IC this is? It has markings on one side that read: 66-EE GA1E. I couldn't find any reference on those markings.
The pin that is sticking up in the photo is the pin that was 'activated' by pushing the button on the toys belly. When touched to the positive lead from the battery, it'll speak. I suspect that the speaker acts as a trigger (for loud noises). Does anyone happen to know what kind of IC this is?