About this item ?RMS 4x40W + Active Subwoofer 4.1 Channel?-- It offers you the peak power output of 800W which lets you drive 2 pairs of high capacity speakers and an active subwoofer. You also get A B switching mode that allows you to run all the speakers together ?Hi-Fi Sound?-- It has a high capacity transformer that gives you clear sound without any distortion. It has a harmonic distortion less than or equal to 0.04 this helps you listen crystal clear and sharp music (NOTE: NOT surround stereo so perfect for listening to music) ?Multiple Connectivity?-- Latest Bluetooth 5.0 version that gives you a large operating range of 30ft. You can connect it with your music streaming devices like pc mobile laptop either with Bluetooth connect 3.5mm AUX Cable or Headphone Jack. It als s USB P SD TF Card port (NOTE: Please keep the distance within 30 10m between the device and amplifier without any wall blocking. But if you are connecting whith TV or PC devi please keep the distance within 15 5m) ?Special Features?-- Its remote-control feature allows you to change audio settings from distance making you less tired and more fortable. ing with an AC DC power adapter ?Easy Operation?-- With bass and treble control knobs you can enjoy the music output as per your wish. Bright digital LED display lets you see the settings you change easily ? See more product details SOBRE ESTE PRODUCTO - RMS 4x40W + Subwoofer Activo 4. - Sonido Hi-Fi sin distorsión - Conectividad múltiple con Bluetooth 5.0 - Control remoto para ajustes a distancia - Operación sencilla con perillas de control de graves y agudos - Ideal para escuchar música con claridad y odidad