MY CHARGE Portable charger and power holder. Connects both ends using USB

MY CHARGE,portable charger and power holder, it'll charge most phones twice. I have never used it on any speakers or anything, I've only used it twice on trips as a (just in case) I did fully charge my Galaxy w it in very little time and there's always the option to plug it into your device and not use the devices battery as well. it's a nice power saver,not bulky and annoying to carry either. happy poshing 😁