I was disappointed in the plastic "locking" device; suggest using a small screwdriver through the whole for leverage and press down firmly (oh yeah, and make sure it is in the unlocked position before you snap it closed. I use this wireless microphone attached to a ION Block Rocker which has a microphone input and works great. It just sits in my closet. I purchased a set and Amazon delivered, right on time. The sole is also very thin and flexible. The port just couldnt provide enough juice I dont think. 5 comme d habitude et c parfait ?? "Full" implies a spacial, balanced surround style, whereas this falls more into a condensed spray of music. I wish I could return this, but I was just outside of the return window La banda elástica es textil.