The JBL Boombox 4 Portable Waterproof Speaker is a large, high-quality Bluetooth speaker designed for areas where a smaller speaker either starts to sound weak or runs out of energy too quickly. The Boombox 4 has a sturdy carry handle and weighs 13 pounds, making it easy to carry and heavy enough that once you set it up, it won’t tip over or blow away. This speaker features two woofers, two tweeters, and three passive radiators, delivering greater sound quality and low-end power than most portable speakers.
A portable speaker perfect for taking everywhere on the go
The JBL Boombox 4 offers two key features to enhance your music experience: AI Sound Boost and Dual Bass Boost. AI Sound Boost analyzes your music in real-time and adjusts its volume to minimize distortion while maximizing power at high volumes. You can also use the Bass Boost button on the top panel to toggle between Deep Bass and Punchy Bass modes, depending on whether you want more emphasis on the low-end or not.
JBL claims the speaker normally has a battery life of up to 28 hours per charge. However, with JBL Playtime Boost, you can add another 6 hours, bringing the total to 34 hours. That much battery life is sufficient to last through a long weekend, a backyard party, or an all-day event without needing access to an electrical outlet. Additionally, the USB-C charging port also allows you to play back digital files in lossless formats stored on a laptop or other compatible device.
Because the speaker carries an IP68 rating, it can be used outdoors without worrying about splashing water or contact with dusty surfaces. Since it’s so durable, you can set it up, play your tunes, and forget about it until you’re ready to pack up.
You can also use Auracast technology to expand your soundscape to even larger areas. For example, you can set up stereo pairing between two Boombox 4 units to create a wider listening field, or connect additional Auracast-enabled JBL products together to play back identical audio across an entire area.
The packaging includes the speaker, AC Power Cord, Quick Start Guide, Safety Sheet, and Warranty Card. At the current sale price of $450, down from $550, the JBL Boombox 4 Portable Waterproof Speaker is a very capable Bluetooth speaker with extended battery life, USB-C lossless playback capabilities, adjustable bass response options via its Dual Bass Boost mode, and an IP68 rating that protects it against water and dust better than many large speakers in its class.