KENMAX 3.5mm Jack 10W Universal External Speaker CB Speaker for TS-750 Yaesu Vertex FT-8100R FT-2600 Kenwood NX-720 NX-800 TK-760G TK-762 TM-261E TM-271 Speaker max power: 10w;Impedance: 8 ohm Plug: 3.5mm mono Jack;Cable lenght: 1.8m speaker dimension: 11 x 9 x 3.6 cm;Freq.: 320-8600Hz Built in Noise Filter switch and MUTE (-8dB) switch. It is good for you to plug this external speaker so you can hear your radio loud and clear.