YealinkYHC20UC USB-A Controller for UH36 UC Edition The YHC20UC is a USB Type-A controller for UH36 UC Edition Headsets. The YHC20UC improves the connectivity of your UH36 headset from a 3.5mm jack to USB-A. It has in-line call controls like mute, volume up and down, and answer or end a call. Specifications: SKU IPY-YHC20UC Barcode # IPY-YHC20UC Brand Yealink Shipping weight 1.6000kg Shipping width 0.220m Shipping height 0.220m Shipping length 0.220m Assembled length 1.200m Assembled height 1.200m Assembled width 1.200m