Coodio 10W Communication External [Mute Switch] Speaker [Noise Filter] [Swivel Bracket] For Ham Radio, CB Radio , Mobile Radio and Scanner Coodio's 10W Communication External Speaker is designed for Ham Radio, CB Radio and Scanner, comes with a 5.5 ft cord and 3.5 mm Right Angle Plug. The mute switch enables you not to adjust the volume knobs on the radio when having a conversation in-car. 5.5 x 4 x 1 inch compact size, 10 Watts and 8 Ohm Operating Power. Includes Swivel Mounting Bracket and Hardware. Compatible with Yaesu, Vertex, iCom, Kenwood, Motorola, Midland, Uniden and Cobra CB and Mobile Radio.