Poly BLACKWIRE 3325 (Domestic Genuine Product) - USB-C/3.5mm connection - Included: Carrying case - Connection type: Wired - Microphone: Noise-canceling - Design: Over-ear Features a comfortable padded headband, soft ear cushions, and 180° rotating earcups for fine adjustments. The flexible boom noise-canceling microphone can be muted at any time with on-hand controls. [Reference Price] Amazon: ¥13,200 #Plantronics #Plantronics