The 288 W amplifier directly powers the internal subwoofer and external speakers (up to 4 speakers). The crossover electronics perfectly balance the output of the speakers for the best acoustic performance. The music is controlled directly from smartphones and MP3 players via advanced Halo Aerial Bluetooth technology, or remote control 29.548.77. Internal amplifier specifications: - device control

The 288 W amplifier directly powers the internal subwoofer and external speakers (up to 4 speakers). The crossover electronics perfectly balance the output of the speakers for the best acoustic performance. The music is controlled directly from smartphones and MP3 players via advanced Halo Aerial Bluetooth technology, or remote control 29.548.77. Internal amplifier specifications: - device control: via Bluetooth with smartphone or MP3.