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Addon C3

Carry around multiroom sound. 

Small in size, big on sound, the 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. Out in the garden, or bring it along to the beach.


3,000 kr
Add to cart
(79 reviews)

Addon C3 is also included in these packages

Multiroom Small 2
Incl: 1 x A10 & 1 x Addon C3.
5,000 kr 4,500 kr
See package Read more
Multiroom Medium 2
Incl: 1 x A10, 1 x Addon C3 & 1 x C5.
7,500 kr 6,375 kr
See package Read more
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 our "easy-to-use" app.

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

Up to 15h (at 50% vol).
9h at 100% vol.

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

79 reviews for Addon C3
Roel Willems

Very good sound quality in a portable package, battery life is also remarkably good. Overall very happy with the C3 as a additional speaker in our setup and useful to get good sound in our garden.

Stuart Walton

Excellent sound quality, very stylish and battery life is excellent compared to other portable devices, I’m getting over 12 hours out of one charge whilst listening to it in the garden. Really happy with it!


Great sound!

Steve v.

Fantastic little speaker!

siim p.

nicely designed with good sound. battery lasts a looong time.

Oliver N.

I’ve found it fiddly and buggy – the sound is good, but spoilt by the poor overall experience. I’ve used Sonos a lot and when you use that all you think of is the music – whereas with this it’s a mission – and why can’t you adjust the volume anywhere except in the audio pro app?

Sami A.
Paul Barnes

Firstly a big thank you to the administration staff who responded to my mistake when ordering off the website and forgot to change the colour from the one pictured to the one I wanted.They very quickly changed the colour before dispatching.Had done a lot of research before opting for the C3 and it doesn’t disappoint.Great, clear sound.Nice treble, rich mid range with a decent bass for such a small unit.Looks lovely, built of quality materials, easy to use and although other reviews criticise the app, I don’t find it too bad to use and soon get used to it.
Great device, well pleased.

Olivier Gillet

Great sound, Easy set-up. Crap app makes you miss 5/5