S2+ ALPHORN
Subscribe & Get Your Exclusive Offer—don’t wait, shop now!
A New Paradigm in Speaker Design
Sound That Breathes
While most speakers will just make music louder, the S2 eliminates distortion as it amplifies your music with its spherical design to deliver a crisp sound recreating your atmosphere.
Alien Design
With 2 strategically placed tweeters and 4 drivers built into the patented spherical design, quality sound at this caliber comes with a design made for a centerpiece.
Perfect Portability
Compromise nothing. Take your music with you anywhere you want to go or turn your home into a soundstage with tripods that give your music the platform to perform.
Almost Everlasting
With 5.3 Bluetooth connectivity and 22 hours of playtime on a single charge, sound does not suffer any distortion or disequilibrium.
UB+ App for Full Control
Choose your range of customizable bass, treble, and mid-sound output, change songs, change the volume and connect multiple speakers with the MATRIX feature.
Technical Specifications
Audio Specs
- Loudspeaker: 4" Bass + 1.5" tweeter x 2
- Output: 22W + 22W
- SPL (Sound Pressure Level): 93dB
- Frequency Range: 38Hz-20kHz
Battery
- Battery Charging Time: 5-8 hours
- Playback Time: 22 hours
- Battery Capacity: 2500mAh x 3
- Battery Charging Voltage: 5-12V/2A
Controls and Connectivity
- TWS (True Wireless Stereo): Yes. Connect 2 (L/R) speakers for balanced stereo sound.
- Low Latency: 75ms
- Input Bluetooth: Bluetooth 5.3
- Supported Sound Formats: MP3/WMA/WAV/FLAC/APE/AAC
- Input Jack: 3.5mm/USB Type-C
Speaker Enclosure
- Enclosure Diameter: 250mm
- Weight: 2.8kg
- Loudspeaker: 4" Bass + 1.5" tweeter x 2
- Output: 22W + 22W
- SPL (Sound Pressure Level): 93dB
- Frequency Range: 38Hz-20kHz
- Battery Charging Time: 5-8 hours
- Playback Time: 22 hours
- Battery Capacity: 2500mAh x 3
- Battery Charging Voltage: 5-12V/2A
- TWS (True Wireless Stereo): Yes. Connect 2 (L/R) speakers for balanced stereo sound.
- Low Latency: 75ms
- Input Bluetooth: Bluetooth 5.3
- Supported Sound Formats: MP3/WMA/WAV/FLAC/APE/AAC
- Input Jack: 3.5mm/USB Type-C
- Enclosure Diameter: 250mm
- Weight: 2.8kg
What’s In The Box
- S2+ ALPHORN Speaker
- Quick start guide
- Type C USB cable
- Tabletop base
- Cowhide Leather Strap
- Wooden tripod stand with base plate
Can't decide? Compare
20 hours
16 hours
22 hours
Bluetooth 5.3
Bluetooth 5.3
Bluetooth 5.3
93dB
93dB
93dB
4.5"BASS +1.5" tweeter X 2
Passive radiator X 2
2.5" Bass+ 1" tweeter X2
Passive radiator X2
4"Bass + 1.5" tweeter X2
40W + 20W
20W + 20W
22W + 22W
IPX5
IPX5
No
2.5 kg / 6.1 lbs
1 kg / 2.2 lbs
2.8 kg / 6.1 lbs
YouTubers about S2 Alphorn
FAQ
Do you ship overseas?
Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.
How long will it take to get my orders?
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
Any question?
You can contact us through our contact page! We will be happy to assist you.
What should I do if the firmware update stops?
1.There are two common situations:
A.If you switched to another app (iOS users):
Exit UB+ SEEK (swipe up to close it).
Reopen the app — the update will resume automatically.
B.If the update stops without switching apps:
Press and hold the power button for 15 seconds (master reset).
Exit and reopen UB+ SEEK.
Follow the prompt to restart the firmware update.
2.Important:
During firmware updates, please stay inside the UB+ SEEK app. iOS restrictions prevent background updates and may interrupt the process
How do I perform a Master Reset on my speaker?
To perform a Master Reset:
Press and hold the power button for 15 seconds until the speaker restarts.