The Name in Professional CB Microphones If you want CB radio equipment with real time-tested history, look no further than Astatic. For over 60 years Astatic has been the trusted source for CB microphones, cables and antennas. Continually tested to ensure the very best in quality, it is the preferred brand among truck drivers and CB enthusiasts. Astatic products deliver durability and high quality, noise-canceling technology developed from years of proven experience in over the road communication. The noise cancelling external CB speaker has a 10-Watt power rating and 8-Ohm impedance. It includes a 10 ft. power cord with 3.5 mm mini plug, mounting bracket and hardware.