Install the upper four pins, move the upper shelf to them and set the bench on its feet. Disconnecting them from your device doesnt turn them off, and the noise cancelling thing also has to be turned off when youre not using them or they it will drain the battery. I also love the carrying case. Installed as per instructions. I have had this item for weeks and I cannot get my 7yo daughter to synch it for the life of me! I carry them in my bag and didn?t want them to get damaged bouncing around. But I still love them! El sonido es muy plano, pero tienen muy buen volumen. The bluetooth connection is strong. i have no idea why or how.