But, I did it alone. This is exactly what it says, and exactly what I was looking for. Just a few customer reviews have mentioned problems with charging and its entirely possible that ALL of them may be using a USB source OTHER than the adapter that came in the box. " I wasnt expecting much beyond just a volume increase, but I was pleasantly surprised. My 10 year old loves the different charms. I definitely recommend these for the casual listener. The clarity is amazing. 2nd I used for the gym and the protective moisture shield for the foam pad came apart and wouldnt stay on, I had to jimmy something around it to still use it when biking. Japprécie ! I will likely not review another product for like ten or more years.