Check the listing for details. Workman SA-400 4" Replacement Speaker for Ham or CB Radios. Condition: New. Listed at 4.83 USD. Replacement Communications SpeakerFor Ham and CB Radios 4" square speaker for 2-Way radios. 8 Ohms impedance. Rated power 1.5 Watt max. Hole to Hole spacing is approximately 3-1/8" Quantity: One Speaker Shipping details and Combining, please see the shipping section and payment tab of the listing for information. Quality Products for the More Knowledgeable and Experienced User !From W5SWL We Ship Fast !Centrally Located - Shipping From the Arkansas River Valley Haven't said the word 'neato' since you were a kid? ...Go ahead ! It happens a lot here 73 de W5SWLThank You Notice to residents of California : California Proposition 65 : Safe Drinking Water and Toxic Enforcement Act . We are fully compliant under section 25249.11(b) ..(W5SWL location code 1FC)