JBL Boombox 4 Portable Bluetooth Speaker

The JBL Boombox 4 Portable Waterproof Bluetooth Speaker delivers massive JBL Pro Sound with AI Sound Boost, deep bass, and portable wireless playback. It combines IP68 waterproof and dustproof protection, up to 28 hours of music playtime, and Playtime Boost for up to 34 total hours.

Made for buyers who want a powerful portable Bluetooth speaker for parties, outdoor gatherings, beach days, and backyard events, the Boombox 4 brings louder sound in a lighter redesigned format. Dual Bass Boost modes let users choose deeper low-end impact or tighter, punchier bass for different listening moods.

USB-C lossless audio playback supports wired digital listening from compatible sources, while Auracast enables stereo pairing with two Boombox 4 speakers or connection with multiple compatible JBL speakers. Its rechargeable 99.02Wh Li-ion battery pack, powerbank capability, and rugged enclosure make it ready for mobile audio use.

Key Features

• JBL Pro Sound with AI Sound Boost: Analyzes music in real time to deliver more output with reduced distortion.
• Up to 34 Hours of Playtime: Runs up to 28 hours, with Playtime Boost adding up to 6 extra hours.
• IP68 Waterproof and Dustproof Design: Protects the speaker for outdoor use around water, dust, and changing conditions.
• Auracast Multi-Speaker Connection: Pairs two Boombox 4 speakers in stereo or links multiple compatible JBL speakers.
• Two Bass Boost Settings: Offers Deep Bass mode and Punchy Bass mode for adjustable low-end response.
• USB-C Lossless Audio Playback: Supports wired digital playback from compatible audio sources and content.
• Built-In Powerbank: Provides charging support for compatible devices while the music keeps playing.
• Replaceable Battery Design: Allows the rechargeable battery pack to be replaced separately when needed.

Technical Specifications

• Brand: JBL
• Model: Boombox 4
• Product Type: Portable waterproof Bluetooth speaker
• Available Colorways: Black, Blue, Squad
• Power Input: 100 - 240 Vac; 50/60 Hz
• Signal-to-Noise Ratio: > 80 dB
• Output Power: AC mode: 2 x 65W RMS woofer, 2 x 40W RMS tweeter; Battery mode: 2 x 60W RMS woofer, 2 x 40W RMS tweeter
• Frequency Response: 37 Hz - 20 kHz
• Transducers: 2 x 5" woofers, 2 x 0.75" tweeters, 2 circle passive radiators, 1 racetrack passive radiator
• Bluetooth Version: 5.4
• Bluetooth Profiles: A2DP 1.4, AVRCP 1.6
• Bluetooth Frequency: 2.4 GHz - 2.4835 GHz
• Bluetooth Transmitter Frequency Range: 2.4 GHz - 2.4835 GHz
• Bluetooth Transmitter Modulation: GFSK, π/4 DQPSK, 8DPSK
• Bluetooth Transmitter Power: ≤ 14 dBm EIRP
• Connections: AC-in, USB-C
• Battery Type: Rechargeable Li-ion battery pack, 99.02Wh
• Battery Charge Time: 3 hours
• Maximum Music Playing Time: 28 hours
• Maximum Playtime with Playtime Boost: Up to 34 hours
• IP Code: IP68
• Dustproof: Yes
• Waterproof: Yes
• Wireless: Yes
• Bluetooth: Yes
• Supports Auracast: Yes
• AI Sound Boost: Yes
• Powerbank: Yes
• Cable Type: AC power cable
• Cable Length: 6.6 ft

What's Included

• JBL Boombox 4: Portable waterproof Bluetooth speaker.
• AC Power Cord: AC plug and quantity vary by region.
• Quick Start Guide: Setup documentation for basic operation.
• Safety Sheet: Safety information for product use.