Pro Trucker CB Radio 2 1/4" 5 Watt External Speaker - 5 watt / 8 Ohm Impedance / Hardware Included Go to amazon.com Related posts Best cb radio weather proof to buy in 2024 Feature2 1/4" External SpeakerWeather-proof8 Ohm ImpedanceIncludes Mounting Bracket & Hardware10 Watts DescriptionThis weatherproof Pro Trucker PT717 heavy duty 2 1/4" external speaker with 10' cord with 3.5mm cord and swiveled mounting bracket is compact yet powerful.