Universal 3.5mm Jack 4W External Speaker/CB Speaker For Motorola Kenwood Yaesu Icom Midland Mobile Transceiver CB Radio TRD250 Compatible with Motorola Kenwood Yaesu Icom Midland Mobile Transceiver CB Radio that used 3.5mm mono jack plug speaker. Impedance: 8 Power handing: 4W max Speaker:2inch,Size:74mm(w)*70mm(h)*30mm(d),Weight:145g Cord Length: 6ft with 3.5mm jack plug