JBL Boombox 4 | 210W | Dual 5-Inch Woofers | 34hrs Battery | IP68 | Bluetooth 5.4

Carry-anywhere audio with chest-thumping bass, replaceable power cell, and lossless USB-C playback

Condition: New

---

---

KSH 64,800.00
Excl. VAT Add to cart

---

Note: price and availability are subject to change without prior notice

---

Color

Blue Chamoflage Black

---

JBL Boombox 4 delivers 210W of JBL Pro Sound through dual 5-inch woofers, dual 0.75-inch tweeters, and three passive radiators with AI Sound Boost, dual Bass Boost modes, up to 34 hours of battery life, IP68 waterproof and dustproof protection, Auracast multi-speaker connectivity, and lossless USB-C audio playback at Ksh 64,800, available now at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD with countrywide delivery and payment on arrival. Launched globally on September 28, 2025, the JBL Boombox 4 replaces the popular Boombox 3 with a completely redesigned driver layout that pushes nearly 50% more output on battery compared to its predecessor, while actually weighing almost 1 kg less. Unlike the Boombox 3's single subwoofer configuration, the JBL Boombox 4 uses two dedicated 5-inch (123mm) woofers working alongside a third rear-firing racetrack passive radiator that joins the two side-mounted circular radiators, creating deeper bass extension down to 37Hz and noticeably more physical impact at every volume level.

JBL Boombox 4 fits perfectly into the lives of Kenya's music lovers, outdoor event organizers, fitness instructors, content creators, small business owners running shops and restaurants, university students hosting gatherings, and anyone who refuses to compromise on audio quality while on the move. The 5.89 kg weight means one person carries it comfortably using the built-in handle, while the IP68 certification means dust, rain, pool splashes, and even brief submersion cannot damage the speaker. At Mascom International, we're witnessing strong demand from customers across Kenya who want a single portable speaker that fills outdoor spaces, poolside gatherings, rooftop parties, and weekend barbecues with room-filling audio that stays clear and controlled even at high volume. Users consistently report that the JBL Boombox 4 delivers bass you feel physically in your body, not just hear through your ears, making it ideal for Kenya's lively social scene where music is the heartbeat of every gathering.

JBL Boombox 4 holds a distinct position against other portable speakers available from electronics retailers in Kenya. The dual Bass Boost modes let you choose between Deep Bass for full, rich low-end reproduction and Punchy Bass for tighter, more energetic bass suited to upbeat tracks. Independent audio reviewers across multiple publications describe the Boombox 4 as one of the strongest options in its class, noting the balanced reproduction that handles everything from bass-heavy dance tracks to vocal-forward acoustic performances with equal clarity. The user-replaceable battery design means your speaker keeps performing at full capacity for years, since you simply swap in a fresh JBL Battery 600 pack instead of discarding the entire unit when battery life eventually degrades. With post-consumer recycled plastic and recycled fabric for the speaker grille plus FSC-certified paper packaging printed with soy ink, JBL Boombox 4 also reflects responsible manufacturing. Visit our Nairobi shop to hear the 210W audio output, test both Bass Boost modes, and experience the lossless USB-C audio quality firsthand, or order through our secure countrywide delivery service with payment on arrival anywhere across Kenya.

What makes the JBL Boombox 4 different from other portable speakers available in Kenya?

JBL Boombox 4 separates itself through three areas where most portable speakers fall short: raw output, battery longevity, and modern Auracast connectivity. The 210W total output on AC power (200W on battery) drives dual 5-inch woofers, dual 0.75-inch tweeters, and three passive radiators in a stereo configuration that produces bass response extending down to 37Hz. That third rear-firing racetrack passive radiator is new to the Boombox family and adds noticeably more low-frequency displacement compared to the Boombox 3's two-radiator setup. The AI Sound Boost technology monitors audio signals in real time and adjusts driver output to maintain clarity while reducing distortion, even when you push the volume to its limits. Independent reviewers tested the JBL Boombox 4 at high volume levels and confirmed that audio quality remains articulate and balanced rather than harsh or muddy. One reviewer spent over three months with the speaker and reported pushing battery life beyond 35 hours at moderate volume, which exceeds JBL's own 28-hour rating. For Kenya's outdoor social culture where speakers face long hours of continuous use at gatherings, that kind of endurance matters more than any spec sheet number. Mascom International stocks the JBL Boombox 4 at Ksh 64,800, significantly below international retail pricing, making it accessible to Kenya's music-loving community without the high markup that other electronics retailers in Kenya typically add to imported audio equipment.

How does the dual Bass Boost system actually work?

The JBL Boombox 4 ships with three distinct bass profiles, and switching between them takes a single button press on the top panel. In standard mode, you get the natural JBL sound with balanced bass, clear mids, and defined highs across the full 37Hz to 20kHz frequency range. Press the Bass Boost button once and the JBL horn logo on the passive radiators glows orange, activating Deep Bass mode where the two 5-inch woofers and all three passive radiators work harder to deliver full, rich low-frequency reproduction that fills the room with physical bass presence. Press the button again and the horn logo turns white, switching to Punchy Bass mode that tightens the low-end response for more energetic, percussive bass suited to uptempo music and dance tracks. The JBL Portable app on iOS and Android also provides a 7-band custom equalizer for fine-tuning beyond these presets. You can adjust individual frequency bands to match your music preferences, room acoustics, or outdoor conditions. The LED-lit horn logos on the passive radiators provide visual feedback showing which bass mode is active, adding a subtle visual element that marks the first time any Boombox model has included lighting effects. For Kenya's DJ community and event hosts who switch between music styles throughout an event, the ability to shift bass character with one button press means the speaker adapts to the mood without interrupting the flow.

How long does the battery actually last during real-world use?

JBL rates the JBL Boombox 4 at up to 28 hours of continuous playback on a single charge, with an additional 6 hours available through the Playtime Boost feature for a combined total of 34 hours. Real-world testing by independent reviewers paints a detailed picture of what to expect at different usage levels. At moderate volume around 20% with Bass Boost disabled, one reviewer recorded over 35 hours of continuous playback before the battery died. At 50% volume without bass enhancement, expect approximately 15 to 18 hours. At 75% volume with Deep Bass active, reviewers report approximately 10 hours of continuous use. The 99.02 Wh lithium-ion battery pack (21.6V / 4584 mAh) represents a 42% capacity increase over the Boombox 3's 69.7 Wh battery. A full charge takes approximately 3 hours with the speaker powered off. The Playtime Boost feature extends runtime by reducing bass output through an EQ preset, which works well for background music situations but noticeably reduces the low-end presence that makes the JBL Boombox 4 special. For Kenya's outdoor event culture where gatherings regularly stretch from afternoon through late evening, the standard 28-hour rating at moderate volume comfortably covers even the longest celebrations without needing a power outlet. The speaker also runs on AC power through the included 2-meter power cable accepting 100-240V at 50/60Hz, which works with Kenya's standard electrical infrastructure for indoor venues where outlets are available.

Can I replace the battery when it eventually wears out?

Yes, and this is one of the most important upgrades over the Boombox 3 and every previous Boombox model. The JBL Boombox 4 features a user-replaceable battery that you can swap in three steps using a standard Allen key to access the battery compartment on the underside of the speaker. The replacement battery is the JBL Battery 600, the same pack used in the JBL PartyBox 520 and PartyBox 720. After two to three years of regular charging cycles, all lithium-ion batteries lose capacity. With previous Boombox models, a degraded battery meant living with shorter playtime or discarding the entire speaker. The replaceable battery on the Boombox 4 means you buy a fresh JBL Battery 600 pack, swap it in, and your speaker performs like new again. JBL also sells battery charging cases separately, allowing you to keep a spare battery fully charged and ready. For Kenya's professional event hosts and business owners who rely on their speaker daily, this feature extends the practical lifespan of your investment by several additional years. Unlike the hot-swap design on JBL PartyBox models where you can change batteries during playback, the JBL Boombox 4 requires powering down for the swap since the IP68 waterproof seal needs to be properly secured after battery replacement. Mascom International stocks JBL Battery 600 replacement packs separately for customers who want to have a backup ready.

What connectivity options does the Boombox 4 offer?

Bluetooth 5.4 handles wireless audio streaming with A2DP 1.4 and AVRCP 1.6 profile support, providing stable connections with your smartphone, tablet, or laptop at distances that comfortably cover large outdoor spaces. The USB-C port serves two purposes that set the JBL Boombox 4apart from most portable speakers on the market. First, it supports lossless audio playback when connected to a laptop or compatible device running services like Apple Music, Tidal, Spotify HiFi, or Qobuz. This bypasses the compression that Bluetooth introduces and delivers full-quality audio directly to the speaker's amplification stage. Second, the USB-C port functions as a power bank, charging your phone or tablet directly from the speaker's 99.02 Wh battery. Auracast is JBL's implementation of the latest Bluetooth broadcast audio standard, replacing the older PartyBoost pairing system found on the Boombox 3. With Auracast, you stereo pair two Boombox 4 speakers for wider soundstage and true stereo separation, or broadcast your music to multiple Auracast-compatible JBL speakers simultaneously without the complicated one-by-one pairing that Bluetooth traditionally required. The dedicated Auracast button on the top panel makes connecting multiple speakers as simple as a single press. One important note: the JBL Boombox 4 does not include a 3.5mm auxiliary input, which represents a change from the Boombox 3. All audio connectivity is through Bluetooth or USB-C. For Kenya's growing community of audiophiles and music professionals, the lossless USB-C playback option means you hear recordings exactly as the artists and producers intended, without wireless compression artifacts.

How does the JBL Boombox 4 compare to the previous Boombox 3?

The JBL Boombox 4 improves on the Boombox 3 in several measurable areas while making a few trade-offs worth understanding. Output increases from 180W (AC) and 136W (battery) on the Boombox 3 to 210W (AC) and 200W (battery) on the Boombox 4. That nearly 50% increase in battery-mode power means the speaker sounds virtually identical whether plugged in or running wireless, which was a noticeable limitation on the Boombox 3 where unplugging reduced output by 44W. The driver configuration changes completely. The Boombox 3 used one large 189mm subwoofer plus two 81mm mid-range woofers and two 20mm tweeters. The Boombox 4 replaces that three-way system with two 123mm woofers and two 20mm tweeters in a simpler two-way stereo layout, adding a third passive radiator (rear-firing racetrack design) to the existing two side-mounted circular radiators. Bass response extends lower on the JBL Boombox 4, reaching 37Hz compared to the Boombox 3's 40Hz floor. Battery capacity jumps from 69.7 Wh to 99.02 Wh, increasing rated playtime from 24 hours to 28 hours (34 with Playtime Boost). Weight drops from approximately 6.7 kg to 5.89 kg despite the larger battery. Bluetooth upgrades from 5.3 to 5.4 with Auracast replacing PartyBoost, meaning the JBL Boombox 4 pairs with JBL's newest speaker lineup but cannot connect wirelessly with the Boombox 3. Waterproofing improves from IP67 to IP68. The Boombox 4 adds a replaceable battery, dual Bass Boost modes, LED lighting on the passive radiators, and lossless USB-C audio playback. It loses the 3.5mm auxiliary input and the metal handle construction of the Boombox 3, switching to a redesigned plastic handle that reviewers describe as sturdy and functional despite the material change. For customers at Mascom International choosing between available models, the Boombox 4 represents the clear choice for anyone prioritizing battery performance, bass impact, and long-term Auracast connectivity.

Is the Boombox 4 truly waterproof enough for Kenya's outdoor conditions?

The IP68 rating on the JBL Boombox 4 provides the highest level of dust and water protection available on any consumer Bluetooth speaker. The "6" in IP68 means complete dust-tight protection where no dust particles enter the enclosure under any conditions. The "8" means the speaker survives continuous submersion in water beyond 1 meter depth, though exact submersion time varies by manufacturer specification. In practical terms for Kenya's climate, IP68 means the JBL Boombox 4 handles heavy rain during outdoor events, pool and beach splash exposure, dusty conditions at outdoor venues and rural locations, humid environments near lakeside gatherings in Naivasha or coastal events in Mombasa, and accidental drops into shallow water. The Boombox 3's IP67 rating already protected against temporary submersion, but the upgrade to IP68 provides additional confidence for extended water exposure. The redesigned base with wider, more stable feet prevents the speaker from tipping over easily on uneven outdoor surfaces, which reviewers specifically noted as an improvement over the Boombox 3's less stable footing. For Kenya's event organizers who set up in diverse outdoor environments from garden weddings in Karen to lakeside corporate retreats, the combined dust and water protection means weather conditions never force you to compromise your audio setup or rush to protect your equipment.

How does the speaker sound at high volume levels?

The AI Sound Boost technology is what keeps the JBL Boombox 4 sounding clean when pushed hard. This real-time processing monitors the audio signal, predicts driver behavior, and adjusts power delivery to maintain clarity while preventing the distortion that typically plagues speakers at high volume. Independent reviewers who tested the Boombox 4 extensively note that audio quality remains controlled and detailed at volumes up to approximately 70% of full output. Beyond that threshold, the speaker remains impressively loud but some reviewers noticed occasional distortion on complex tracks with heavy bass and simultaneous vocal content. The signal-to-noise ratio exceeds 80dB, keeping background noise minimal during quiet passages and between tracks. The frequency response of 37Hz to 20kHz covers the complete audible spectrum, with the low-end extension reaching frequencies you feel physically rather than just hear. Reviewers describe the bass response as deep enough to make objects vibrate and floors creak at high volume, while the dual tweeters maintain vocal clarity and instrument separation. One long-term reviewer noted that the JBL Boombox 4 performs comparably to the JBL PartyBox Club 120 in terms of peak volume and bass impact, which is notable given the PartyBox Club 120's significantly larger cabinet size and higher price point. For customers in Kenya who host regular gatherings of 30 to 80 people in outdoor settings, the Boombox 4 provides sufficient volume coverage without requiring supplemental speakers or PA equipment.

Where can I buy the JBL Boombox 4 in Nairobi right now?

JBL Boombox 4 is in stock now at Mascom International, located at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, priced at Ksh 64,800. Walk into our showroom to hear the 210W JBL Pro Sound fill the room, test both Deep Bass and Punchy Bass modes with your own music through Bluetooth, experience the lossless audio quality through USB-C from your laptop, and feel the physical bass impact from those dual 5-inch woofers and three passive radiators before making your purchase decision. Our team provides expert consultation on speaker selection, multi-speaker Auracast configuration with other JBL models, and practical advice on battery management and maintenance for your specific audio needs. JBL Boombox 4 is available in Black, Blue, and Squad (camouflage) finishes. Every JBL Boombox 4 from Mascom International includes complete manufacturer warranty, AC power cable, quick-start documentation, safety information, and professional setup assistance including Bluetooth pairing and JBL Portable app configuration. Contact us at +254 708 852 521, email info@mascomintl.com, or visit www.mascomintl.com to learn more.

Do you deliver outside Nairobi to other parts of Kenya?

Mascom International provides secure countrywide delivery with payment on arrival throughout all 47 counties in Kenya. Place your order by phone at +254 708 852 521, email info@mascomintl.com, or through our website at www.mascomintl.com, and receive your JBL Boombox 4 without any upfront payment requirement. Delivery reaches major cities including Mombasa, Kisumu, Nakuru, and Eldoret within 1 business day, while remote locations typically receive orders within 2 to 3 business days. This trusted pay-on-delivery approach lets you physically inspect the speaker, verify the packaging and all accessories, test the Bluetooth pairing and audio output, and confirm everything meets your expectations before completing payment. Our satisfied customers throughout Kenya appreciate this commitment to transparent, risk-free purchasing that puts their confidence first.

Technical Specifications

Sound Reproduction and Driver Configuration

• Total Output Power (AC mode): 2 x 65W RMS Woofer + 2 x 40W RMS Tweeter (210W total)
• Total Output Power (Battery mode): 2 x 60W RMS Woofer + 2 x 40W RMS Tweeter (200W total)
• Woofer Configuration: Two 5-inch (123mm) drivers produce deep, controlled bass with significant air displacement for physical low-frequency impact
• Tweeter Configuration: Two 0.75-inch (20mm) drivers reproduce clear high frequencies for vocal clarity and instrument detail
• Passive Radiator Configuration: Two circular side-mounted passive radiators plus one rear-firing racetrack passive radiator enhance bass extension and dynamic impact
• Frequency Response: 37Hz to 20kHz covers the full audible spectrum with bass extension reaching frequencies you feel physically
• Signal-to-Noise Ratio: Greater than 80dB ensures clean, detailed audio free from audible background noise at all volume levels
• AI Sound Boost: Real-time audio processing analyzes music and adjusts driver output to deliver more volume with less distortion, even at full volume levels
• Bass Boost Modes: Deep Bass (orange LED, full rich bass) and Punchy Bass (white LED, tighter energetic bass) selectable via top-panel button or JBL Portable app
• Stereo Configuration: True left-right channel separation from the dual woofer and dual tweeter layout

Battery and Charging Management

• Battery Type: Rechargeable lithium-ion battery pack, 99.02 Wh capacity (21.6V / 4584 mAh)
• Standard Playtime: Up to 28 hours continuous playback per charge, varies with volume level and audio content
• Extended Playtime: Up to 34 hours with Playtime Boost feature enabled (reduces bass output to conserve power)
• Charge Time: Approximately 3 hours for full charge with speaker powered off
• Replaceable Design: User-serviceable battery accessed via Allen key on the underside compartment, uses JBL Battery 600 replacement packs sold separately
• AC Power Input: 100-240V ~ 50/60Hz universal compatibility works with Kenya's standard electrical infrastructure
• Power Cable: 2.0-meter (78.7-inch) AC cable with region-appropriate plug
• USB-C Power Output: Charges connected smartphones and tablets directly from the speaker battery

Wireless and Wired Connectivity

• Bluetooth Version: 5.4 with extended range for stable connections across large venues
• Bluetooth Profiles: A2DP 1.4 and AVRCP 1.6 for high-quality audio streaming with playback control
• Bluetooth Transmitter Frequency: 2.4 GHz to 2.4835 GHz
• Bluetooth Transmitter Power: Less than or equal to 14dBm (EIRP)
• Bluetooth Modulation: GFSK, pi/4 DQPSK, 8DPSK
• Auracast: Wireless stereo pairing with a second Boombox 4 or broadcast to multiple Auracast-compatible JBL speakers simultaneously
• USB-C Audio: Lossless digital audio input from connected laptops, smartphones, and tablets bypasses Bluetooth compression for full-quality playback
• USB-C Power Bank: Charges connected devices from the speaker's 99.02 Wh battery
• Connection Ports: AC power input, USB-C (audio and charging)
• Note: No 3.5mm auxiliary input on this model

Build Quality and Environmental Protection

• IP Rating: IP68 certified waterproof and dustproof — complete dust protection and continuous water submersion resistance
• Dimensions (W x H x D): 506.4 x 262.9 x 212.9 mm (19.9 x 10.4 x 8.4 inches)
• Net Weight: 5.89 kg (13 lbs), approximately 0.8 kg lighter than the Boombox 3
• Handle: Built-in ergonomic carry handle for comfortable single-person transport
• Base Design: Redesigned wider feet provide stable positioning on flat and uneven surfaces
• Passive Radiator Lighting: LED-lit JBL horn logos on side radiators glow orange (Deep Bass) or white (Punchy Bass) when Bass Boost is active
• Materials: Post-consumer recycled plastic body and recycled fabric speaker grille with FSC-certified paper packaging printed with soy ink
• Color Options: Black, Blue, Squad (camouflage)

JBL Portable App Integration

• Platform Support: Available on iOS and Android smartphones and tablets
• Custom Equalizer: 7-band frequency adjustment for tailored sound to your music genre and listening environment
• Bass Boost Control: Visual toggle between Deep Bass and Punchy Bass modes with additional fine-tuning options
• Auracast Management: Stereo pairing and multi-speaker broadcast configuration from a single device
• Playtime Boost: Battery-saving mode accessible through the app for extended wireless operation
• Firmware Updates: Over-the-air software updates add features and improve performance throughout the speaker's lifetime

Package Contents

1. JBL Boombox 4 speaker with 210W audio output, dual Bass Boost modes, and IP68 protection
2. AC power cord (plug type and quantity varies by region) compatible with Kenya's standard electrical infrastructure
3. Quick start guide with Bluetooth pairing instructions and feature overview
4. Safety information sheet
5. Warranty card

Note: JBL Battery 600 replacement packs and battery charging cases are sold separately. USB-C cable for lossless audio playback is not included — use your existing USB-C cable or purchase one separately at Mascom International.

12 Months Warranty

JBL Boombox 4 is in stock now at Mascom International, your trusted portable audio specialist in Nairobi's central business district. Hear the room-filling 210W JBL Pro Sound, test the dual Bass Boost modes with your own playlist, experience lossless audio through USB-C, and feel the physical bass impact from those dual 5-inch woofers and three passive radiators firsthand at our shop located at Old Mutual Building, First Floor Room 4, Kimathi Street, or benefit from our secure countrywide delivery service with payment on arrival. Available in Black, Blue, and Squad finishes with complete Bluetooth 5.4 connectivity, Auracast multi-speaker support, and all accessories ready for pool parties, outdoor gatherings, beach trips, fitness sessions, and everyday music enjoyment across Kenya. Every JBL Boombox 4 from Mascom International includes complete manufacturer warranty, AC power cable, professional setup documentation, and expert consultation support for your complete satisfaction and peace of mind. Contact us at +254 708 852 521, email info@mascomintl.com, or browse the full JBL range at www.mascomintl.com.

---

Disclaimer: We can not guarantee that the information on this product is 100% correct

• Related
• Details
• Reviews

---