Kenwood Original KES-3(S) External Speaker - Max. Input Power: 5 Watts, Impedance: 4 Ohms, Plug: 3.5mm, Dimension (W x H x D): 114 x 66 x 55 mm (4 1/2" x 2 19/32" x 2 5/32"), Weight: 350g. (0.77 lbs) The compact Kenwood KES-3S mobile speaker is constructed on a swivel stand. This 4 ohm speaker can handle up to 5 watts. Supplied a with speaker cable that terminates to a mono (3.5mm) mini plug. External Speaker - Max. Input Power: 5 Watts, Impedance: 4 Ohms, Plug: 3.5mm, Dimension (W x H x D): 114 x 66 x 55 mm (4 1/2" x 2 19/32" x 2 5/32"), Weight: 350g. (0.77 lbs