JBL Boombox 4 Portable Bluetooth Speaker – Black.

We turn it up our way—anywhere. The all-new JBL Boombox 4 is bigger, bolder, and better than ever, with powerful JBL Pro Sound that stays loud and clear, with deep thumping bass. AI Sound Boost analyzes our music in real time and adjusts the sound to give us more power with less distortion, even when we turn it all the way up. It packs two bigger woofers, two tweeters and three passive radiators, so every track hits harder and sounds cleaner. When we want to fine-tune the vibe, we just switch between deep or vibrant punchy Bass Boost settings to match our mood. We gave the classic Boombox design a fresh upgrade—it’s larger but lighter, so we can take it wherever the party goes: the beach, the block, or the backyard. It’s IP68 waterproof and dustproof, so weather’s never a dealbreaker. And, with up to 34 hours of playtime (thanks, Playtime Boost), we’re set for the long haul. With the JBL Boombox 4, we carry the mood and the energy, everywhere we go.

Specs

General Specifications
Output power (W): (AC mode) – 2 x 65W RMS Woofer, 2 x 40W RMS Tweeter (Battery mode) – 2 60W RMS Woofer, 2 x 40W RMS Tweeter
Power Input: 100 – 240 Vac; 50/60 Hz
Signal-to-Noise Ratio: > 80 Db

Audio Specifications
Frequency Response: 37Hz – 20 kHz
Transducer: 2 x 5 inch / 2 x 123mm woofer, 2 x 0.75 inch / 2 x 20mm Tweeter, 2 pcs circle + 1 pc racetrack passive radiator

Control and Connection Specifications
Connection: AC-in, USB-C
Bluetooth profiles: A2DP 1.4, AVRCP 1.6
Bluetooth Transmitter Frequency Range: 2.4GHz – 2.4835GHz
Bluetooth version: 5.4
Connection Ports: AC-in, USB-C

Battery
Battery Charge Time: 3 hours
Battery Type: Rechargeable Li-ion Battery Pack 99.02Wh
Cable Length: 6.6ft
Cable Length: 2m
Cabel Type: AC Power Cable
Maximum music playing time: 28hrs

Features
AC power cable (type varies by regions): Yes
AI Sound Boost: Yes
Bluetooth: Yes
JBL PartyBoost: Yes
Powerbank: Yes
Supports Auracast: Yes
Waterproof: Yes
Wireless: Yes
Dustproof: Yes
IP Code: IP68

What’s in The Box:
JBL Boombox 4, AC power cord (AC plug and quantity varies by region), Quick start guide, Safety sheet, Warranty card