I needed to upgrade the firmware. Without upgrade it was not so good. The hardware on the other had is good. A combinati... Show Full Review

EarFun's JumboBass technology is a one-of-a-kind bass boost algorithm. Developed exclusively for enhancing bass frequencies and power by integrating the customized digital signal processor and multiple dynamic range controllers. This means the bass can be enhanced while still managing to produce high-pitched vocals.
Enjoy deep, punchy bass sound with EarFun innovative JumboBass™ technology UBOOM L speaker. Dual passive radiators work together with the 55mm dynamic bass booster speakers to enhance low-end tones, giving a clearly punchy bass sonic experience.
The layout of the side passive radiators has been optimized to reproduce clear bass sound.
Multi Sound Modes
Dimensional experience with DSP technology and switchable three sound mode.
Send your music to a wider area, creating a festival vibe, wherever you are.
Built-in 5200 mAh rechargeable batteries allow for up to 16 hours of playtime on a full charge.
The USB Type-C® ports provide convenient connectivity.
3.5mm auxiliary input allows you to connect to other sources.
I needed to upgrade the firmware. Without upgrade it was not so good. The hardware on the other had is good. A combinati... Show Full Review
4 of 4 people found this helpful
5 of 31 User Reviews
Une tres belle découverte !
Le son est très bon, les basses sont profondes : un excellent rapport qualité prix !
Just wow... I bought two of these speakers and the sound is superb. Oluv's tuning is spot on. Great job Oluv!!!
Több vélemény és teszt olvasása után választottam az EarFun UBOOM® L-et és nem bántam meg. Jó a dinamikája, de nem zavaró a basszus, tiszta a közép és magas hang is. A kidolgozása tökéletes, az anyagok minőségi tapintásúak. Ár/érték bajnok!!!
Hi,sound superb ,firmware oluv 4.8 ,outdoor setings,
The tuning on these speaker is really good. The bass is punchy and full. I got two of these and using as my and using them in stereo mode. For the price with some discount from Oluv’s channel, these are definitely a steal.