Speco's 12V DC amplified deluxe professional communications extension speaker features an ABS plastic enclosure with a 10 watt speaker and soft padded grille. It is equipped with a swivel bracket for all angles and comes with a 10 ft. cord and 3.5mm mini plug. Technical Specifications Dimensions 4 1/2" H x 5 1/2" W x 2 1/2" D Impedance 4 - 8 ohm Voltage 12V DC Wattage 10 watt