There is a very loud and annoying beeping that occurs every time you start charging and thats something you cant remove unless—presumably—you find a way to open it up and disconnect the speaker

That being said it works even with the thickest cases because of the power output and being able to turn off the charger is great

Cool be careful ports are easy to break it was a cool gadget until it started to kill my battery on my nexus 5 made it superrr hot and eventually stopped charging devices after 2 weeks