Upgrade your for JBL audio experience with the UNIKARO Battery 400, specifically designed for jbl Partybox Stage 320 and Xtreme 4 speakers. This replacement battery features modern USB-C charging functionality, ensuring convenient and fast power replenishment. The sleek, matte black housing is engineered to fit perfectly within your jbl device while maintaining the original form factor. With its robust construction and reliable performance, this battery helps maintain your speaker's portable functionality. The battery's compact design integrates seamlessly with your Partybox Stage 320 or Xtreme 4, allowing you to continue enjoying your music wherever you go. Compatible with both the Partybox Stage 320 and Xtreme 4 models, this versatile power solution keeps your audio equipment running at optimal performance.