For Christmas, my son received a number of toys that were manufactured in China. Many of these included batteries, lights, and very loud sounds. Some of the sounds though, were louder than expected, and I feared may damage his hearing. So, to preserve my sanity (and my son’s hearing) I decided to take them apart to bring peace to our household (or at least some gentler sound effects and songs).
To accomplish this, I purchased a small gauge wire stripper, a kit of resistors on Amazon as well as some shrink wrap tubing. Using a pair of sidecutters, I cut one of the wires connecting the speaker to the PCB, stripped both ends and soldered a 100 ohm resister (remembering to slide the heat shrink tubing before the second solder). This significantly lowered the volume of the toy and restored peace and peace of mind, knowing that my son’s toy is now less likely to damage his hearing and my attitude.