JBL PartyBox 320 Speake

240 W JBL Pro Sound with Dual Woofers & Tweeters
Equipped with two 6.5″ woofers and dual 25 mm dome tweeters powered by a 240 W amplifier, the PartyBox delivers clean, deep bass and crisp highs that can fill large indoor or outdoor spaces. 

Adaptive Futuristic Light Show
Features an immersive light display of starry strobe effects, cool trails, and pulsing visuals synchronized to the beat—fully customizable via onboard controls or the JBL app. 

Up to 18 Hours Playback + Fast Charge & Swapable Battery
Runs up to 18 hours per charge (depending on volume and lighting), with a quick 10‑minute fast charge giving ~2 hours extra, and the battery itself is replaceable for extended use. 

Portable Design: Telescopic Handle & Sturdy Wheels
Designed for mobility with a built-in telescopic handle and wide, smooth wheels—making it effortless to roll around for events or transport. 

Splash‑Proof Build with IPX4 Rating
Withstands light water splashes (e.g. poolside or light rain), protected via an IPX4-rated enclosure and port covers. 

AI Sound Boost for Maximum Performance
An AI-powered signal optimization system maximizes bass and volume while reducing distortion, even at high output levels. 

Auracast & Multi‑Speaker Pairing
Supports true wireless stereo (TWS) pairing and multi‑speaker Auracast™ connections—ideal for expanding coverage across larger gatherings. 

Mic & Guitar Inputs with Karaoke EQ
Dual XLR/instrument inputs enable live singing or guitar sessions, complete with EQ tuning and fun effects—making it perfect for karaoke or jams. 

PartyBox App for Control & Customization
Manage EQ, light-show patterns, music settings, and interactive effects directly through the JBL PartyBox mobile app, offering remote control and visual customization. 

High Bass Dynamics—When Tuned Correctly
Reviews on Reddit confirm the speaker can deliver substantial bass — but only when bass‑boost and app EQ are enabled. In-store demos often underwhelmed; once adjusted in-app, users report powerful low-end that even “rattles a concrete floor.” Reddit