Laney F67-Supergroup, Portable Bluetooth Speaker, Battery-operated - up to 20 hours of battery life, Power: 2x 20 Watt, Equipped with: 4"" Dual coil speaker and 2x 3/4"" tweeters, Controls: Volume, bass, treble, Switches: Pair, on/off, Aux input: 3.5 mm Stereo jack, Dimensions (W x D x H): 265 x 160 x 152 mm, Weight: 2.8 kg, Classic Supergroup amplifier design, Includes detachable shoulder strap and 12 V 3 A universal power supply (100 - 240 V, charges the internal battery)