Professional Speaker N15PLi(with AMP+MP3+ipod) Specifications * Metal Grill Cover of Speakers, Plastic Box * 2-Way, 2-Speaker Professional speaker * High Efficiency Mid-Low Woofer * 35mm Titanium Dome Horn Driver * PTC Driver Protect * Maximum Allowable Input: 450W * Impedance: 8 Ohm ±20% * Sensitivity: 101±3dB * Frequency Response: 35Hz-20 KHz (-3dB) * Recommend For Midsize Room or Bar and Hall That Requires Vocal Clarity.Product Size: N15PLi:710x370x450mm Carton Size: N15PLi:795x450x515mm/1pc