$50
This 6.5 x 4.875 x 7.875 inch Kenwood external base speaker was originally sold for the TS-700 series of transceivers but will work with any radio requiring an 8 ohm 2.5 Watt external speaker.
On the back there are two screw terminals to attach a speaker wire (not included).
See https://www.universal-radio.com/catalog/hammulti/sp70.html for more information.
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