Wrap-Around Design - These headsets wrap around your ear for more comfortable use than earbuds or larger headsets. Inline Vox/Ptt Switch - The inline switch sets you up for controlling vox or push-to-talk features on your radio, and a lapel clip keeps it handy and out of the way. Go Hands-Free - These headsets are ideal for hands-free operation, and the discrete transparent design makes them perfect for working security. Compatibility- The AVP-H3s work with all Gxt, Lxt & G-Series Models.