JBL Boombox 4
Original price was: 64,990৳.52,500৳Current price is: 52,500৳.
Spend ৳5,000 or more to save ৳150
- Fast Delivery Dhaka in 24–48h
- Secure Payment COD / MFS / Cards
- 100% Authentic Genuine Warranty
- 24/7 Support Expert Assistance
JBL Boombox 4 Portable Bluetooth Speaker
Key Features
- Unbeatable Original JBL Pro Sound: Upgraded 7-driver system with dual 5″ woofers, two 0.75″ tweeters, and three passive radiators for massive bass depth
- 210W RMS High Power Output: Delivers up to 210W RMS on AC power mode and 180W RMS on battery mode for room-shaking acoustic performance
- AI Sound Boost Technology: Real-time dynamic audio analysis maximizes acoustic output while eliminating sound distortion at high volumes
- Dual Hardware Bass Modes: Easily toggle between Deep Bass mode and Punchy Bass mode with glowing visual LED indicators
- Massive 28-Hour Battery Life: 99.02Wh rechargeable battery provides up to 28 hours of playtime, extendable to 34 hours with Playtime Boost
- IP68 Dustproof & Waterproof: Heavy-duty rugged construction built to withstand severe outdoor elements, rain, and beach trips
- Auracast Multi-Speaker Pairing: Wirelessly link two Boombox 4 speakers for stereo sound or synchronize multiple Auracast-enabled JBL units
- Lossless Audio & 30W Powerbank: Supports direct lossless music playback via USB-C input and provides up to 30W power output to charge mobile devices
- User-Replaceable Battery Design: Designed with a removable battery architecture to extend long-term product service life
- 100% Authentic Brand Guarantee: Verified original stock available directly at Umrelo Bangladesh
Product Gallery
210W RMS Output, IP68 Rugged Build & 28-Hour Battery Life
The JBL Boombox 4 is a flagship portable party speaker engineered to deliver high-output sound, deep bass, and long-lasting endurance. Available in the wireless speaker collection at Umrelo, this speaker is built for outdoor parties, large gatherings, and travel.
Equipped with dual 5″ woofers, two 0.75″ tweeters, and three passive radiators, the Boombox 4 outputs up to 210W RMS on AC power and 180W RMS on battery mode. Featuring AI Sound Boost and dual bass enhancement modes, it reproduces a wide 37Hz to 20kHz frequency spectrum with minimal distortion. Its IP68 waterproof and dustproof chassis housing protects the internal components in harsh outdoor environments, while the 99.02Wh battery offers up to 28 hours of playback with 30W USB-C device charging.
Pair your high-power portable speakers with high-capacity power banks, durable USB-C charging cables, and fast wall chargers directly at Umrelo Bangladesh.
Technical Specifications
| Brand & Manufacturer | JBL |
| Product Model | BOOMBOX 4 |
| Speaker Category | High-Output Portable Bluetooth Speaker |
| Transducer Setup | 2 × 5″ Woofers + 2 × 0.75″ Tweeters + 3 Passive Radiators |
| Total RMS Power Output | 210W RMS (AC Mode) / 180W RMS (Battery Mode) |
| Frequency Response | 37 Hz – 20,000 Hz |
| Wireless Connectivity | Bluetooth Version 5.4 |
| Water & Dust Rating | IP68 Certified Waterproof and Dustproof |
| Battery Type & Capacity | 99.02 Wh Rechargeable Lithium-ion Cell (User Replaceable) |
| Maximum Playtime | Up to 28 Hours (Standard) / Up to 34 Hours (Playtime Boost) |
| Charging Duration | Approximately 3 Hours |
| Powerbank Function | USB Type-C Power Output up to 30W Fast Charging |
| Wired Audio Input | USB-C Digital Lossless Audio Playback Interface |
| Multi-Speaker Ecosystem | JBL Auracast Multi-Speaker Linking |
| Dimensions & Net Weight | 5.89 kg (13 lbs) Lightweight Redesigned Chassis |
| Category | Wireless Speakers & High-Power Audio Systems |
Note: Maximum playback time depends on output volume levels, audio content, and active Playtime Boost settings.
What's in the Box
• JBL Boombox 4 Portable Bluetooth Speaker × 1
• Dedicated AC Power Cable & Adapter × 1
• Quick Start Guide & Safety Instruction Sheet × 1
• Warranty Documentation × 1
Frequently Asked Questions
Can I submerge the JBL Boombox 4 speaker in water?
Yes. The JBL Boombox 4 features an IP68 dustproof and waterproof rating, allowing it to withstand heavy rain, water splashes, sand, and complete water submersion.
Can I charge my phone using the JBL Boombox 4 battery?
Yes. The speaker features a built-in powerbank capability via its USB Type-C port, providing up to 30W power output to fast-charge smartphones, tablets, and mobile gear.
How does Auracast multi-speaker pairing work on the Boombox 4?
Auracast allows you to connect two JBL Boombox 4 speakers together for dedicated Left and Right channel stereo sound, or link multiple Auracast-enabled JBL speakers wirelessly to cover large event spaces.
Where can I buy original JBL speakers in Bangladesh?
You can purchase 100% genuine JBL audio products at Umrelo with fast delivery across Bangladesh, or visit our physical Experience Center in Dhaka at Shop 461, Level 03, Motalib Plaza, Hatirpool. WhatsApp: 01940166001. Explore all wireless speakers available at Umrelo.
Delivery Information | ডেলিভারি তথ্য
Fast & Reliable Nationwide Shipping from Umrelo.com.bd
Inside Dhaka Metro
ঢাকা সিটির ভেতরেGazipur, Savar, Narayanganj
গাজীপুর, সাভার, নারায়ণগঞ্জOutside Dhaka Metro
ঢাকার বাইরে জেলা শহরLarge Items / Weight Notice
Delivery charges may vary for large items or products with significant weight. We will notify the customer during order confirmation.
অতিরিক্ত ওজনের বা বড় সাইজের প্রোডাক্টের ক্ষেত্রে ডেলিভারি চার্জ পরিবর্তন হতে পারে। অর্ডার কনফার্ম করার সময় গ্রাহককে তা জানিয়ে দেওয়া হবে।Order Cut-off Time: 04:00 PM
Orders placed after 4:00 PM will be processed on the next business day.
বিকাল ৪টার পরের অর্ডারগুলো পরবর্তী কার্যদিবসে প্রসেস করা হবে।Advance Payment Notice
For deliveries outside Dhaka Metro city areas, the delivery charge must be paid in advance to confirm the order.
ঢাকার বাইরের ডেলিভারির ক্ষেত্রে অর্ডার কনফার্ম করতে ডেলিভারি চার্জ অগ্রিম প্রদান করতে হবে।
JBL Boombox 4
Sorry, no reviews match your current selections
What is the price of the JBL Boombox 4 in Bangladesh?
The latest price of JBL Boombox 4 is 52,500৳. Shop genuine JBL Boombox 4 online at Umrelo.com.bd or visit our Motalib Plaza Experience Center in Dhaka today.
- Fast Delivery Dhaka in 24–48h
- Secure Payment COD / MFS / Cards
- 100% Authentic Genuine Warranty
- 24/7 Support Expert Assistance
