Uniden (BC20) Bearcat 20-Watt External Communications Speaker. Durable Rugged Design, Perfect for Amplifying Uniden Scanners, CB Radios, and Other Communications Receivers ,Black

This 4.5-Inch speaker may be small but with its 300hz-5kHz it brings more balance to your already rock'n Uniden speakers. With its Scanner and CB capability you will be able to hear/communicate with ease. The noise blanker will help reduce any electrical noise that usually happens with incoming calls.