PLANTRONICS BLACKWIRE 3325, UC, STEREO W/ 3.5MM, USB-C CORDED HEADSET PROMO EXP 30JUN20 Plantronics Sale! from 13155 /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 3325, BW3325 USB-C Qty available: 5 SKU: 213939-01 Tweet