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Core 2



Core 2 Limited Edition



Core Steel 2


Core Steel
See all version differences

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Delivery 4-9 days delivery in
30 days money-back guarantee 30 days money-back guarantee
1 year warranty 1 year warranty

In the box


If you can't find your answer, contact us!

  • How long is the battery life?

    4+ days in watch mode, or 3+ hours metronome playback

  • Is it waterproof?

    It's splash resistant (IP65). This means it can withstand light rain or water splashes, for example while washing your hands. However, it can not withstand heavy rain, showers or water immersion.

  • Can I sync it to my DAW?

    Yes, DAW support is currently in beta. For more information please visit here.

  • Can I turn off the LED lights?

    Yes, you can customize the colors of the LED lights or turn them off completely!

  • Why can't I just use my other wearable, e.g. Fitbit or Apple Watch?

    We use a 7G ERM haptic motor powered by a special haptic driver. This creates vibrations unlike in other wearables. More distinct and precise & 700% more powerful than most devices. This powerful hardware is not just a gimmick that sounds cool, but a requirement for a vibrating metronome to work.

  • Where can I wear it?

    The silicone strap and the Italian leather strap (Core Steel only) are designed for the wrist. In addition, both versions come with a body strap that allows you to wear the Core on your arm, ankle, chest, shoulder or thigh.

  • What wrist sizes is it designed for?

    Fits wrists with 140mm - 210mm / 5.5 in - 8.3 in

  • What instruments can it tune?

    The microphone tuner app works with any instruments. The contact tuner app needs to be unlocked with the purchase of a magnetic tuning accessory. It works with guitar, bass guitar, ukulele and violin.

  • What's the difference between the Pulse, Core 2 and Core Steel 2?

    The Pulse is our entry level product that features just a vibrating metronome. You can change the rhythm on the device, but it has no screen so for precise adjustment you have to use the companion app. The Pulse has a longer battery life, but also a much bigger size than the Core. The body strap comes not included and is available for purchase separately. The Core 2 doesn't just feature a vibrating metronome, but also a practice tracker, chromatic tuner, decibel meter and smartwatch features. It comes with a screen, so precise adjustments can be made right on the device. It is not just a music tool, but can also be used as your daily watch. The body strap comes included with each Core for free. The Core Steel 2 has the exact same features as the Core. On top of that, it's made from a premium full stainless steel casing and besides the silicone strap, it comes with an Italian leather strap. It also includes a bonus carrying pouch.

  • Is my phone compatible with it?

    For up to date compatibility information please visit here.

  • How many devices can you sync at the same time via multi-player sync?

    You can sync up to 5 Soundbrenner wearables via Bluetooth to the same mobile device. You can sync just Pulse, just Core or a mix of both.

    If you want to sync more than 5 Soundbrenner wearables, you can link multiple mobile devices via a technology called Ableton Link that we support. You can then connect 5 Soundbrenner wearables to each linked mobile device. For more information check out our guide here: setup guide.

  • How do I charge it?

    The device comes with a USB charging cable that works with any regular USB port.

  • Is it safe when you have a pacemaker or other medical devices?

    It contains strong magnets that may interfere with some medical devices. We recommend to consult with your physician before using the product.

  • Do you ship internationally?

    Absolutely! We’re a global company and ship to almost every country in the world. To find out if we ship to you, simply initiate the checkout process and see if your country is available for selection.

  • How much does shipping cost and how long does it take?

    Simply initiate the checkout process and enter your address. Our system will tell you the shipping costs and give you an estimate for the duration.

  • Can I return it if I change my mind?

    Yes, you can return any item you purchased on our web store to us within 30 days of receipt and you will get your money back (excluding shipping costs). For more information check our terms of sale.

  • Do you offer a product warranty?

    Yes, we offer a 1 year warranty on all of our products. If your item has a defect due to a mistake on our part, we will send you a replacement free of charge. For more information check our terms of warranty.

Tech specs

45.5mm / 1.7 in
34g / 1.2 oz (Core), 68g / 2.4 oz (Core Steel)
Case material
Polycarbonate (Core), Stainless steel (Core Steel)
Wheel material
Aluminium (Core), Stainless steel (Core Steel)
Glass material
Tempered mineral glass
Strap size
Fits wrists with 140mm - 210mm / 5.5 in - 8.3 in
Water resistance
Splash resistant (IP65), protected from rain and water splashes (but no showering!)
4+ days in watch mode, or 3+ hours of metronome playback (200 mAh lithium-ion battery)
2x Monochrome OLED, 0.68 in, 96x32px
G-sensor for raise to wake function
1 RGB LED in center, 8 RGB LEDs in outer ring
Capacitive touch
Supported languages
English, German, Spanish, French, Italian, Chinese (simplified), Chinese (traditional), Korean, Japanese
  • Vibrating metronome
    Vibration motor
    ERM haptic motor, 7G amplitude
    BPM range
    20 - 400 BPM
    Rhythm options
    Adjust the time signature or subdivision and set accents on beats
    Customization options
    Adjust the LED light colors or vibrations and add sounds via your mobile device
    Wearing positions
    Wrist, arm, ankle, thigh, chest & shoulder (body strap included)
    Control options
    Use standalone or with companion mobile app
    Multi-player sync
    Up to 5 Core or Pulse with one mobile device, sync multiple mobile devices over WiFi with Ableton Link
    Tap tempo
  • Practice tracker
    Session goals
    Set time-based targets for each practice session
    Tag each session with the instrument you used
    Activity breakdown
    Detailed practice insights available with companion mobile app
    Supports daily & weekly goals with current streak shown on watch face
    Time cropping
    Adjust session duration post-practice for accurate time tracking
    View practice statistics on lock and home screen widgets (iOS only)
    Data sync
    Active practice sessions, along with historical data, are synced between wearable & mobile app
  • Chromatic tuner
    Microphone tuner
    Contact tuner
    (unlocked with purchase of magnetic clip or magnetic mounts)
    MEMS microphone & piezo contact microphone
    Supported instruments
    Microphone tuner: universal compatibility. Contact tuner: guitar, bass guitar, ukulele & violin
    Frequency range
    25.6 Hz - 416 Hz
    Tuning reference
    410 Hz - 480 Hz
    ±1 cent
    LED guided tuning
  • Decibel meter
    MEMS microphone
    Measuring range
    70 - 110 dB
    Frequency weighting
    dB steps
    ±1 dB
    Real-time dB
    ±1 cent
    Average dB
    Volume alarm
  • Smartwatch
    Bluetooth 5.0
    Smartphone music remote
    iOS & Android
    Smartphone notifications
    iOS & Android
    Accept & decline phone calls
    iOS & Android
    Calendar notifications
    iOS & Android
    App dock
    Rearrange and remove apps
    Raise to wake display
    Timer app
    Alarm app
    Stopwatch app

Compare wearables

Vibrating metronome
Practice tracker
Microphone tuner
Contact tuner
Decibel meter
Smartphone music remote
Smartphone notifications
Silicone strap
Body strap
Italian leather strap
Carrying pouch


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50mm / 1.9 in
Vibrating metronome
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No longer available
Aluminium &
45.5mm / 1.7 in
Vibrating metronome
Available separately
Available separately

Core 2

Buy now
Aluminium &
45.5mm / 1.7 in
Vibrating metronome
Available separately
Available separately

Core Steel 2

Buy now
Stainless steel
45.5mm / 1.7 in
Vibrating metronome

Reviews by musicians