Product Description Model: K4 Array SpeakerRated Power: 60WMax Power: 100VInput: 100V/70V/25V optionalSensitivity(1m/1W):Frequency Response:Dimension(mm): 336*170*271Material: ABSWeight(kg): 3.85Speaker unit: 4x1" dome tweeter+2x4" wooferColour: Standard White(RAL9016) and Black.Adjustable dispersion angle: 0-6 degree per speakerAs you know, The common two-way box speakers have fixed voice frequency range, if we want to manage complicated condition, especially in reverberant spaces, it would be defective. And now, The ARMYBEAT K4 variable dispersion Array speaker offers a feasible design work with four adjustable dispersion angles 0-24 degress. The light ABS enclosure could be easier to install for multitude of applications. Againist the different applications, you can array many pieces together to have more power and degress enough. The K4 can horizontally or VerticalMounted with built-in bracket or with optional wall hardware.