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JBL Boombox 4 Portable Bluetooth Party Speaker Black

Name: JBL Boombox 4 Portable Bluetooth Party Speaker Black
Brand: JBL
SKU: 21407
Price: 444.99 EUR
Availability: BackOrder

✔ Advanced Bluetooth 5.4 connectivity
✔IP68 waterproof and dustproof build
✔Extended Battery Life Up to 28hrs
✔Pro Audio & Charging Ports

Original price was: 449,99€.Current price is: 444,99€.

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General

Product Name	JBL Boombox 4 Portable Bluetooth Party Speaker
Color	Black
Region	-
Model Number	JBLBOOMBOX4BLKEU
Category	Portable Bluetooth Party Speaker
Release Year	2025

Audio

Speaker Configuration	2 x 123 mm (5-inch) woofers, 2 x 20 mm (0.75-inch) tweeters, 3 passive radiators
Output Power (AC Mode)	2 x 65 W RMS (woofers) + 2 x 40 W RMS (tweeters)
Output Power (Battery Mode)	2 x 60 W RMS (woofers) + 2 x 40 W RMS (tweeters)
Frequency Response	37 Hz - 20 kHz
Signal-to-Noise Ratio	> 80 dB
Sound Technology	JBL Pro Sound with AI Sound Boost
Bass Enhancement	Dual Bass Boost modes
Stereo Pairing	Supported via Auracast-compatible devices

Connectivity

Wireless Technology	Bluetooth 5.4
Bluetooth Profiles	A2DP 1.4, AVRCP 1.6
Bluetooth Frequency Range	2.400 GHz - 2.4835 GHz
Bluetooth Transmitter Power	≤ 14 dBm (EIRP)
Bluetooth Modulation	GFSK, π/4 DQPSK, 8DPSK
Multi-Speaker Technology	Auracast
USB Audio	USB-C lossless audio playback
USB Charging	Power bank functionality via USB-C
Wired Inputs	USB-C, AC power input
3.5 mm Audio Jack	No

Battery

Battery Type	Rechargeable Li-ion battery pack
Battery Capacity	99.02 Wh
Playback Time	Up to 28 hours
Playtime Boost	Up to 6 additional hours
Charging Time	Approximately 3 hours
Replaceable Battery	Yes

Design

Dimensions	51.0 x 26.0 x 21.0 cm
Dimensions (Imperial)	20.0 x 10.0 x 8.0 inches
Weight	5.89 kg
Weight (Imperial)	13.0 lb
Carrying Handle	Integrated ergonomic handle
Construction	Rugged portable design with recycled plastic and fabric materials

Durability

Water Resistance	IP68
Dust Resistance	IP68
Outdoor Use	Beach, poolside, backyard, camping

Features

AI Sound Boost	Yes
Auracast Support	Yes
Power Bank Function	Yes
JBL Portable App Support	Yes
Firmware Updates	Over-the-air via JBL Portable app
Lossless Audio Playback	Supported via USB-C

Power