Model: BT30D. 1x BT30D Amplifier. Speakers full frequency output, By using custom treble bass knob and adjustable 40-300Hz cutoff frequency for subwoofer, you'll be able to get the best sound! Supports wireless playback from Bluetooth devices, Bluetooth 5.0 wireless music streaming technology with external antenna make a transmission distance of more than 15m/49ft.
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