These high power music speakers with built-in amplifier and multimedia player feature a 2-way bass reflex speaker system with a 6.5” long throw woofer and a silk dome tweeter. Easily adjust the speaker's volume level from your phone, tablet or other BT enabled device or play music directly from the USB connection. Suitable for free-standing or wall mounting using the enclosed adjustable mounting brackets. The trapezoidal design allows for the enclosures to be mounted neatly in corners, making them ideal for Background music, Hi-fi and surround sound applications. Set consists of 2 speakers (Active + Passive) Built-in class-D stereo amplifier Multimedia player with USB port 2-Way Bass reflex speakers with crossover filter Using BT wireless technology for audio streaming Bass Response System Aux (RCA) Input Microphone input (6.3mm) Volume, Microphone volume, Bass, Treble Adjustment Metal Speaker Grilles Colour: Black Including mounting brackets and power cable