Size: 7 x 10 x 4 cm Professional Series Microphone for 4 pin Cobra/Uniden/Workman/Midland/Galaxy Stryker Retevis CB radio. Compatible with most 4 pin CB radio. High Sound Quality The dynamic voice coil diaphragm design on this CB Radio microphone was made to provide excellent sound quality in all areas of microphone performance. Noise Canceling Provides maximum talk power and intelligibility even under noisy conditions. Easy to Operate Heavy duty coiled cord, Length: 2Ft (Mini) 5Ft(Usual) 8Ft (Max). Designed for close talking handheld applications. The left side push to talk button and the 8 foot coiled cord for this dynamic microphone, as well as a comfortable ergonomic design, allow for convenience at your fingertips even when on the road.