PLANTRONICS BLACKWIRE C3225 UC STEREO USB-C & 3.5MM CORDED HEADSET PROMO EXP 30JUN20 Plantronics Sale! from 12380 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. BLACKWIRE,C3225 USB-C Qty available: 5 SKU: 209751-101 Tweet