JBL Battery 400 Spare Battery - Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) Q1 JBL 2414H-C 1" polymer diaphragm

JBL 2414H-C 1" polymer diaphragm compression driver improves high frequency performance as well as system reliability

Yamaha Proprietary Sound Processing

Select your preferred surround sound settings and personalize your JBL headset for a user-friendly dashboard

PEAK SOUND: From the subwoofer to the sound tower

JBL Battery 400 Spare Battery - Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) Q1 JBL 2414H-C 1" polymer diaphragmPrice Match Guarantee JBL Battery 400 Spare Battery Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) The JBL Battery 400 is an external battery designed to extend the playtime of compatible JBL speakers. Here's a breakdown of its key features: Double the Playtime: Each battery provides up to 18 hours of additional playtime for your speaker, effectively doubling the total playtime on a single charge.