The Shure MXC420/C is a 20 inch cardioid gooseneck microphone. MXC Gooseneck Microphones have a flexible section at the bottom and a straight section at the top to provide easy adjustment while maintaining a streamlined appearance in meetings and conferences. Industry-standard MX-series microphone cartridges deliver accurate voice capture, and CommShield® Technology rejects RF noise. An integrated bi-color LED indicates microphone status. Available in 16 inch (40 cm) and 20 inch (50 cm) lengths. Microflex® Complete Gooseneck Microphones deliver unsurpassed performance, control, and flexibility for meetings and conferences. Compatible with MXC and MXCW-series conference units, MXC Gooseneck Microphones bend at the bottom but are straight at the top to provide a streamlined appearance in contemporary meeting spaces. A choice of 16 inch (40 cm) and 20 inch (50 cm) lengths match different table dimensions or seating configurations. The standard cardioid polar pattern provides accurate voice capture with minimal pickup of room noise. For additional control in difficult acoustic conditions, MX-series cartridges with supercardioid and mini-shotgun patterns are also available. An integrated bi-color LED indicates microphone status.Integrated CommShield® Technology provides enhanced immunity to RF noise from mobile phones or tablets.