JBL Xtreme Splashproof Portable Bluetooth Speaker with 10,000 mAh Battery, Dual USB Charging Port and Handsfree - Camo : Amazon.de: Electronics & Photo
JBL Xtreme 3 review: Extremely loud, not so portable - SoundGuys
Replacement Battery for JBL Xtreme 2 JBLXTREME2BLKAM JBLXTREME2BLUAM,fits SUN-INTE-103 2INR19/66-2,6800mAh