JBL Battery 400 Spare Battery - Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) Q1 PEAK SOUND: From the subwoofer

PEAK SOUND: From the subwoofer to the sound tower

Premium RCA Subwoofer/ Audio Cable

Polk Audio OWM3 Wall and Bookshelf Speakers (4 Speaker Bundle)

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

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

JBL Battery 400 Spare Battery - Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) Q1 PEAK SOUND: From the subwooferPrice 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.