PLANTRONICS CS540 MONO CONVERTIBLE WIRELESS DECT HEADSET -PROMO EXP30JUN20 Plantronics Sale! from 49544 /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. CS540A,CONVERTIBLE,DECT,AUS/NZ Qty available: 5 SKU: 84693-03 Tweet