Rocking soundCrank up the volume and enjoy those powerhouse tunes with 20 W of great sound. The Jam Heavy Metal Speaker features dual precision tuned drivers for crisp audio quality, augmented by two passive bass radiators to fill out the low end.Style and convenience This portable speaker has been crafted from a piece of anodized aluminium with bevelled edges to give it a slick, eye-catching look that’ll get attention wherever you take it. Bluetooth allows you to listen free from cables – stream music from digital libraries on compatible smartphones, tablets and computers, sharing tunes and giving you more playback flexibility. No cables means no hassle while you’re moving around. You can connect non-Bluetooth audio devices via the 3.5 mm jack using the included cable, opening up your listening options even further.Eight hour playback time You’ll get up to eight hours of listening time with the Jam Heavy Metal HX-P920BK-EU’s built-in Lithium-ion battery, which can be recharged via USB.