The Standard Horizon SSM-64A headset with VOX and PTT is designed for style and comfort. The SSM-64A has a metal band that fits comfortably over the head with an adjustable boom mic allowing the user to make clear, concise radio broadcasts. VOX or PTT operation is selected from the intuitively designed control switch, unwanted noise can also be filtered out with the manual gain control built right into the switch. The SSM-64A is compatible with any current Standard Horizon portable VHF that has an output for a speaker microphone connection.