Little Big in size. The controls are intuitive and easy to use, and include volume adjustment, play/pause, the auto-equalizer toggle button and power. Very pleased with the quality and sound. Color is a beautiful shade of red. I bought this corset so that I can get more of an hour glass silhouette for my 1950s & 60s clothing. So I ordered 2 more in blue and navy also in size 2. You can also visit their website for help. Battery, 7. The lightly "rubberized" non-skid soles wear out and loses its effectiveness eventually. Very simple to assemble and works great.