Sony SS-CS5 3-Way 3-Driver Bass Reflex Stereo Bookshelf Speakers are black, rectangle-shaped, and made of polyester. They have a 2.0 channel surround sound format and a maximum power of 100 W. These wired, powered/active bookshelf speakers have banana jack audio inputs and are compatible with universal Sony products. They are portable and have a weight of 22.05 lbs.