What would happen if my radio fell in my bath?

so the only way I can listen to my radio in the tub is to set it on the edge of my bath. Im wondering about the numbers that would go into it falling in with me. I mean, it wont. but I'm really curious about the physics in it. whats a radios volt/amps? is it lethal? how long would it take to kill me? say I was in the tub for twenty minutes in warm water: whats my bodies resistance? Im about 5'10 and 300 lbs. and my bath is plastic no metal not even the drain. I get hung up on math problems (Im autistic) and if you dont help me solve it I'll go nuts.