Enhance your computer's audio output with these Polk Audio HIPS wired computer speakers. Designed with a gray plastic material, these speakers. The audio input is a 3.5 mm jack. These portable speakers are perfect for those who want to enjoy high-quality audio on their computer. They still work fine and have a "rich" sound for such small speakers. Each speaker is about 4" by 3" by 4" and weigh ~1 ob 4 oz.