The size it perfect and I am going to be ordering more. Bass boost, but don?t see the need. The bars look good on the car - similar to the OEM parts. Microphone is realy nice clear voice. The size chart is off a little I was going to purchase the medium but I said to myself, ? I better get the next size up,? Well, I?m glad I did because the slipper would have been too small. It does not have an optical input otherwise it would have made an excellent speaker for the TV. I love this fits at the area at the bottom of my stairs perfect Check out YouTube for table saw sleds for the rest. If I wouldve paid the $40 for these I think Id be very disappointed but as a gift theyre alright. They fit as expected, Im a EU 40 and UK 7 fits perfect.