Amazon.com: Jabra Talk 25 SE Mono Bluetooth Headset – Wireless Single Ear Headset with Built-in Microphone, Media Streaming, up to 9 Hours Talk Time, Black : Cell Phones & Accessories
Jabra Stealth UC (MS) Bluetooth Mono Headset 5578-230-309 B&H
Sennheiser 231 Mono Bluetooth Headset- The ultra-secure bluetooth wireless headset is the perfect choice for financial, medical, government and contact centers or anywhere sensitive conversations happen