JBL XTREME Portable Bluetooth Speaker with ultra-powerful performance and comprehensive features / now transportable / 15 hours of playtime / 10,000mAH battery with dual USB charge out / speakerphone / Splashproof / Output power 2 x 20W Bi-amp / Frequency response 70Hz - 20kHz / Signal-to-noise ratio 80 dB / JBL Connect / Wirelessly links multiple JBL Connect compatible speakers together / Xtreme powerful sound