Yealink CPE90- CP Wired Expansion Mic Yealink Sale! from 27200 /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. The Yealink CPE90 is a CP Wired Expansion Mic which works as an audio input device for Yealink CP960 conference phone. Qty available: 16 SKU: CPE90 Tweet