This thing is awesome! Just throw in about any set's headset port and forget about all that programming and compatibility issues. I don’t understand why more telecom products aren’t this simple. Separate controls for Listen & Speak and a Tone dial too. There are buttons to switch from handset to headset and a mute button that works in both modes. Add the power adapter and you’re all set!

Rating: [5 of 5 Stars!]