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Addon C3 Yellow

Here comes the sun 

Limited Launch Edition Colour – Sunflower Yellow!

Small in size, big on sound, the Addon C3 delivers astonishing audio quality for its size. Battery powered so the music can move with you. Play your music wirelessly at home in a multiroom setup, or carry it around with you and play wirelessly with Bluetooth.


3,000 kr 1,900 kr
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(17 reviews)
All rooms liberated

Have a speaker in every room and play to one or all at the same time. Everybody can play their personal music on which ever speaker they want. Play from internet streaming services, from a computer or NAS in your network, or music on your phone.
All controlled by the App Of Simplicity.

More colours of Addon C3

See the standard colours here.

Addon C3
Play nice. Everywhere.

Multiroom sound and multi person usage. Group and play, set to left/right for stereo pairs. Play all together. Or not. You choose.

Music should be felt

The Audio Pro renowned sound quality is always present. Feel every detail in your music.

All the music you need

Well, we don’t have every single little music service on the planet, just the ones that count.

Wifi Presets - Play direct

No need to start fiddling with your phone, just push and play. Save your favourite radio station or playlist to a button simply by pressing it while playing content.

The battery lasts a loooong time

Addon C3 is designed to be used for a long time. The battery lasts a full 15 hours at half volume. And a whopping 9 hours at maximum volume!

Connectivity for all

With Airplay®, Spotify Connect® and Bluetooth® you can play all your music any way you like.

The Audio Pro multiroom app

Download here
Technical Specification
Addon C3 Yellow
Amplifiers & Drivers

Amplifiers: 2x5W + 15W Digital class D
Tweeter: 2 x 3⁄4” textile dome
Woofer: 3.5” long throw


Wi-fi + Ethernet, Bluetooth V4.0, and 3.5 mm stereo


Range: 60 - 20,000 Hz
Crossover: 5.200 Hz


HxWxD: 115 x 215 x 135 mm

Multiroom Functionality

Audio Pro Multiroom

Network Compability

802.11 b/g/n, 2.4 GHz only

Streaming Features

Spotify Connect, Apple Airplay & Bluetooth

Audio formats

MP3, WMA, AAC, FLAC, Apple Lossless

17 reviews for Addon C3 Yellow
Martin M.

A lot to like about this small speaker: design, small size, replacement battery, Bluetooth, WiFi and Alexa (through app). Sound quality is good but not aimed at bass heads. I like the fact that I can link to other audiopro speakers. It easily linked to iPhone and tv. What lost it a star. App is clunky I tried changing bass and treble through this and there was little difference. Access to music clunky. At Black Friday price though I have little to complain about and wish I had bought 2.


I have a C5 but prefer the C3 as it has a battery and has amazing capability. Easy to install and sounds good especially in low volumes.

Robin P.

Unfortunately the battery was defective. However they are sending me a new one.

I already own a T3 which is a 5* piece of kit.

The functionality of the app is a bit clunky and whilst I can see me using the WiFi to access my music on my network, I suspect the main use it will get is with line in attached to Alexa.

Sound quality is first class and possibly an edge above the T3.

The fact it is not reliant on a mains lead is a big plus during the summer.

With a good battery the C3 would get a 5* review

BTW off the back of listening to my T3, a total of 7 friends have now bought the same or similar – that speaks volumes (pun 🙁 )

David F.

Excellent. Great sound great bright colour. App needs to default to music.


Nice product and clear sound

samu karvonen

It was perfect before it just stopped working no matter what I try. Something with the power input. I just died.

Victor Kleinberg

The comparison with the C5 is of course unfair. But, given the excellence of the C5, I don’t use the C3 in other rooms.


Hardware is absolutely perfect (I bought this next to me c10s and T3 because of the audio quality);

connection & setup not always easy to achieve (I’m tech savvy, but my partner has problems);

app is bismal and I try to stay away from that as much as possible (says an App product owner by trade).

If app and connection setup would improve I’d give 5 stars. But since its all about the audio for me it still gets 4 stars

Peter Goczan

I still couldn’t connect it to the Android app, I can only use the bluetooth and the aux connections

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