Morpheus 360 Connect USB Mono Headset with Boom Microphone HS5200MU

Best Buy

Single-ear headset design, Thin, minimalist headband, On-ear earpiece style, Boom microphone design and placement, Black color

Mono Headset with Boom Mic Leatherette Single Barrel Adapt

Walmart - Seller

Single-ear, over-the-head design, Black/grey color scheme, Boom microphone present, Thin headband, Round, padded earpiece, No visible brand logo (consistent with source)

Poly Blackwire 3310 Headset USB

B&H Photo-Video-Audio

Black color (mostly), Single-ear design, Microphone boom, Thin over-the-head headband, Circular padded earpiece size and shape