Proprietary JumboBass™ DSP
Integrates dynamic range controllers and active equalization to amplify low-end frequencies up to 28W peak output without inducing vocal harmonic distortion.
Flagship Outdoor Acoustic Engineering
Industrial-Grade Portable Sound Solution
The EarFun UBOOM L is built specifically for international commercial markets, audio distributors, and OEM/ODM procurement partners. Combining proprietary JumboBass™ digital signal processing with custom acoustic tuning by industry specialist Oluv, this speaker delivers uncompromised frequency balance and dynamic power across outdoor, indoor, and commercial deployment environments.
JumboBass™ R&D
Proprietary DSP bass enhancement algorithm
IP67 Waterproof
Dustproof, salt-water resistant & floatable
28W Peak Output
Dual 55mm dynamic drivers & passive radiators
16 Hours Battery
5200mAh capacity via fast Type-C charging
Technical Capabilities
Engineered for Wholesale Excellence and Reliability
EarFun maintains rigorous factory quality control standards, ensuring low RMA rates and exceptional end-user satisfaction for global retail partners.
True Wireless Stereo (TWS)
Supports dual-unit hardware pairing. Easily links two UBOOM L units to form a discrete Left/Right soundstage for commercial events and outdoor venue coverage.
Triple DSP Sound Modes
Includes dedicated Indoor, Outdoor (extended dispersion), and ultra-low latency Video Modes to preserve lip-sync synchronization during media playback.
OEM Specifications
EarFun UBOOM L Parameter Datasheet
Complete technical metrics for procurement managers, logistics planning, and compliance verification.
| Specification Metric | Engineering Parameter | Commercial & Application Advantage |
|---|---|---|
| Bluetooth Version | Bluetooth 5.0 (2.402GHz - 2.480GHz) | Stable wireless transmission up to 15m (49ft) uninterrupted radius. |
| Acoustic Transducers | 2 x 55mm Dynamic Drivers + Dual Passive Radiators | Full-range acoustic output delivering punchy bass and crystal-clear vocals. |
| Output Power rating | 2 x 14W Peak RMS Output | High acoustic pressure level suitable for outdoor environments and party coverage. |
| Battery & Playtime | 7.4V, 5200mAh (2 x 2600mAh cells) / Up to 16 Hours | All-day continuous operation; fast 4-hour recharge via USB Type-C input (5V/3A). |
| Waterproof / Dustproof Rating | IP67 Certified (Submersible & Floatable) | Complete protection against dust ingress, ocean spray, rain, and water immersion. |
| Dimensions & Weight | 78mm x 210mm x 72mm / 650g total weight | Compact footprint optimized for global freight efficiency and retail shelf density. |
| Audio Input Interfaces | Bluetooth 5.0 + 3.5mm Auxiliary Port | Versatile compatibility with non-Bluetooth commercial audio equipment. |
Procurement FAQ
Frequently Asked Questions for Commercial Buyers
What certifications does EarFun UBOOM L possess for international distribution?
EarFun UBOOM L fully complies with international standard specifications including CE, FCC, RoHS, REACH, and IP67 waterproof certification standards. Official compliance documentation is available upon inquiry.
How does the True Wireless Stereo (TWS) pairing mode work for bulk orders?
Any two UBOOM L production units can be natively paired by holding the Bluetooth button for 3 seconds. The system automatically designates left and right channels, doubling the sound pressure for large venues.
What warranty and after-sales backing does EarFun offer to B2B partners?
EarFun provides a standard 18-month warranty, comprehensive RMA support, localized regional support infrastructure, and downloadable user manuals for end-user customer peace of mind.
Connect with EarFun Global Wholesale & OEM Team
Ready to add the award-winning EarFun UBOOM L to your product catalog or request a commercial quote? Contact our international business development representatives today.
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