Belkin 3-Port Headset Switch (F1D103A) Allows the users to easily switch one headset between PC, office phone and mobile devices Ports located on the back of the unit: Clean, thoughtful design means less clutter on the desk Compatible with 3.5 mm connectors for hands-free sets and headsets Dedicated Button panel interface that provides a momentary switching action Status LEDs above each button give clear indication of which device is in use Mute button that provides with status LED provides on/off switching action - disable or pause the microphone functionality