JBL Xtreme is the ultimate portable Bluetooth speaker that effortlessly delivers earth-shaking, powerful stereo sound by incorporating four active transducers and two visible JBL Bass Radiators. Packing a massive rechargeable battery that supports up to 15 hours of playtime and dual USB charge out,. High performance wireless Bluetooth streaming, rechargeable battery with 15 hours playtime. Recharge your smartphones and tables form USB port. JBL connect: Build your own ecosystem by connecting multiple jbl connect enabled speakers together to amplify the listening experience. Splashproof means no more worrying about rain or spills; you can even clean it with running tap water. Just dont submerge it; 4 speakers. Bluetooth compatible. 3.5mm AUX in. 4 amplifier channels. Frequency 70Hz-20000Hz. General information Model number: JBLXTREMEREDEU. Size H12.6, W28.3, D12.2cm. Speaker diameter 6.3cm. Batteries required 1 x Li-Ion batteries (included). Battery life: 15 hours. Manufacturers 2 year guarantee.