Marshall Tufton, Bluetooth speaker, 1x 40W Class-D amplifier woofer, 2x 15W class-D amplifiers full-range driver and 1x 10W class-D amplifier tweeter, Bass reflex, Frequency range: 40 - 20000 Hz, Maximum level: 102 dB @ 1mW, Bluetooth 5.0, Up to 20 h operating time, Quick charge function, IPX2 Water protected, Controls: Bluetooth, Power/Volume, Bass and Treble, Battery indicator, 3.5 mm Jack input, Dimensions: 229 x 163 x 350 mm, Weight: 4.9 kg