3.5mm plug</br>Speaker:3 inch</br>Impedance: 8Ohm</br>Power handing: 5W</br>for Mobile transceiver/ CB radio/ Ham radio</br></br>Product Description</br></br>Impedance: 8Ohm Power handing: 5W max Speaker:3 inch Cord Length: 6ft with 3.5mm jack plug Size: 140mm(w)*80mm(h)*60mm(d) Weight: 270 g</br><br/>http://www.amazon.com/gp/product/B00OFKI5TE