EarFun UBOOM L Bluetooth speaker with great distortion-free sound

When you hook up a Bluetooth speaker, it’s usually because you want more sound than your phone can deliver.  Pound for pound, I don’t think I’ve ever tested a Bluetooth speaker with better, bigger sound than the UBOOM L speaker I’m listening to now. Cranked up to high, its 28 watts of power can be heard anywhere in my house. 

Credit Oluv, an Austrian-born sound engineer, for tuning a masterpiece in miniature.  Between DSP algorithms and EarFun’s proprietary JumboBass technology, the fullness of sound is amazing.  

Physically, credit two 55mm drivers inside where you can’t see them – but crank up the volume and you’ll know they are there. At each end are two external passive radiators that complete the auditory experience. 

On the back of the speaker are two inputs, one for charging via USB-C and one for wired 3.5mm audio from your legacy devices.

At least in Cleveland, you never can count on the weather being the same two hours from now, so it’s nice to know that the UBOOM L can take a surprise shower if one were to occur. It’s actually rated IP67, so you could technically take it for a swim.  Drop it overboard from your fishing boat – it’ll float back up to the top.  Sweet! 

If you are an audiophile, dare I suggest you get two?  They pair beautifully with TWS technology up to 100 feet away. First, connect your Master speaker to your phone, then connect the second speaker to the first, and presto, yard-filling stereo sound.  

Not ready for a party, take advantage of all its other modes besides outdoors mode. There’s an indoor mode, video mode, voice assistant mode, and allows for hands-free phone calls. Plus, its battery will keep the sound going – up to 16 hours depending on volume and mode.  

Here are the key features of the EarFun UBOOM L:

  • Utilizes Bluetooth 5.0 for ultra-stable connection and a skip-free music streaming. 
  • Huge Stereo Sound with Intense Bass: Packed with Two 55mm drivers, Dual Passive Radiators and Advanced Digital Signal Processing (DSP) Algorithms to fill every corner of your room with 28W of rich sound. 
  • Extreme Outdoor Sound: press play and experience huge stereo sound that’s distortion-free and crystal-clear sound outdoors, even at high volumes. 
  • IPX7 Fully Waterproof with EarFun’s Innovative Sweatshield™ Technology and it floats on water
  • Switch Between Indoor and Outdoor Mode:  “Indoor Mode” with emphasis on bass; “Outdoor Mode” for loud sound. 
  • Video Mode: Super Low atency for Better Video Experience. 
  • Up to 16 hours of Battery Life to keep the music playing on camping weekends, days at the beach, boat trips, and more. 
  • Wireless Stereo Pairing: Pair two UBOOM L via a single device for double the volume or huge stereo sound
  • Portable Build: easily to take it on adventures, wherever the party is. 
  • Built-In Mic for Hands-free Calls. 
  • Activate Voice Assistant – Instantly connect Alexa, Siri® or Google Assistant™. 
  • USB Type-C Connectivity for wider compatibility and easy charging. 
  • And 3.5mm aux in jack connect from non-Bluetooth audio devices. 

Order the UBOOM L now and get 10% off with the coupon on the Amazon page, plus use my discount code EFSP30001 and get an additional 10% off thru August 31st.  

Doug Bardwell bio