A 2x 40W Hifi stereo audio power amplifier with MP3 player, ensuring optimal listening pleasure. Even at higher volume levels the amplifier provides a high sound pressure. Featuring USB/SD inputs, Speaker-out protection, remote control etc. Comes with Bass and Treble control and an external 12Vdc socket. 2x 40W amplifier MP3 player with USB port and SD slot Using Bluetooth wireless technology for audio streaming External voltage supply: 12Vdc / 5A Overload protection Remote control Treble/Bass/Volume control You have a question about this product? Fill in this form, we'll answer your question as soon as possible.