Model: EH-EBM-NP-1038 Ear-Bone Microphone headset for devices with Nexus headset plug - No PTT
Model: EH-EBM-QD-1017 Ear-Bone Microphone headset with Quick Disconnect - Harris XL
Model: EH-EBM-NP-1040 Ear-Bone Microphone headset for cell phones and computers - 3.5mm straight headset plug - No PTT