Wireless & smart speakers
JBL Boombox 4 Portable Bluetooth Speaker — Black
The JBL Boombox 4 is a rechargeable portable speaker with a carry handle and a black finish. Two woofers, two tweeters and three passive radiators form its speaker system, with Bluetooth 5.4 providing wireless playback. Auracast can pair two Boombox 4 speakers in stereo or connect compatible JBL speakers for shared playback; additional speakers are not included. JBL quotes up to 28 hours of battery playback, with up to six extra hours using Playtime Boost, depending on volume and audio content. The replaceable battery is supplied within the speaker; a spare battery is sold separately. Compatible lossless audio can play through USB-C from supported sources, but USB thumb-drive music playback is not supported. An AC power cord is included; a USB-C audio cable is not. The IP68-rated enclosure measures 506.4 mm wide, 262.9 mm high and 212.9 mm deep and weighs 5.89 kg.
- Bluetooth 5.4 wireless playback
- Auracast stereo pairing and compatible JBL multi-speaker playback
- Up to 28 hours playback plus up to 6 hours with Playtime Boost
- USB-C lossless playback from compatible sources; no USB thumb-drive playback
- IP68 dust and water resistance
- Replaceable rechargeable battery; spare sold separately
Handling and delivery: 2–5 days via DHL or FedEx. Free UK delivery.
- Manufacturer reference
- JBLBOOMBOX4BLKUK
- EAN / GTIN
- 1200130024269
Technical specifications
- Dimensions W × H × D
- 506.4 × 262.9 × 212.9 mm
- Weight
- 5.89 kg
- Amplifier output (AC)
- 2 × 65 W RMS woofers + 2 × 40 W RMS tweeters
- Amplifier output (battery)
- 2 × 60 W RMS woofers + 2 × 40 W RMS tweeters
- Battery
- 99.02 Wh; approximately 3-hour charge
- Connections
- Bluetooth 5.4; USB-C audio; AC input
