The Blackwire 5220 headset has been designed for all-day use, which is why it features a cushioned metal headband for durability and comfort, as well as leatherette ear cushions, which fold flat for easy storage. When using them all day, you can jump back and forth between calls and other audio, like your favorite music, thanks to the Dynamic EQ. Dynamic EQ automatically adjusts and optimizes the audio settings between phone calls and multimedia. Blackwire 5200 Series is supported by Manager