FAQ's

Sonovo is a UK-based brand dedicated to helping people manage tinnitus through innovative bone conduction audio products. Our goal is to make relief accessible, comfortable, and natural, without medical intervention.

No. Sonovo products are not medical devices and are not intended to cure tinnitus. They use sound-based relief methods that can help reduce tinnitus contrast and promote calm through gentle auditory stimulation.

Yes. 5% of every purchase is donated to Tinnitus UK, supporting awareness, education, and research into tinnitus care.

Bone conduction transmits sound vibrations through your cheekbones directly to the inner ear, bypassing the eardrum. This helps reintroduce natural sound to the auditory system, reducing the contrast between tinnitus and silence.

Yes. Bone conduction is a well-established, non-invasive audio method used safely in medical and consumer devices for decades.

No, there is currently no known cure for tinnitus. Sonovo products are designed to make tinnitus less intrusive and help you adapt through consistent sound exposure.

Many users experience a sense of calm within days, but tinnitus relief is gradual. With regular use, the brain begins to adapt, making tinnitus less noticeable over time.

Typically, we ship directly from our UK fulfilment centre to ensure fast and reliable delivery. However, if demand is high, we may need to ship from one of our US or SEA facilities.

Most orders arrive within 2–4 working days. However, if demand is high, we may need to ship from one of our US or SEA facilities. The longest time you will wait for your product is 14 days, but 95% of our products are delivered within 2 days. Express and tracked options are available at checkout.

You can visit our returns policy page here.

Press and hold the power button for about 3 seconds to turn it on. The blue light will flash to confirm it's powered on. Press and hold the same button for about 3 seconds again to turn it off.

When you turn Sonata 2.0 on, it automatically enters pairing mode. Open Bluetooth settings on your phone and select "Z-Sleep" from the list of available devices. Once connected, the blue light will stay on steadily.

Yes. Sonata 2.0 remembers the last device it was paired with and will try to reconnect automatically each time it's turned on.

Disconnect Sonata 2.0 from your current device in its Bluetooth settings first, then follow the pairing steps above on the new device.

Sonata 2.0 is designed to be placed under your pillow, not worn. The silicone pad should face down, with the plastic shell facing up so it sits comfortably against the pillow surface. Position it in the centre of the pillow, and sleep with your ear close to that spot for the best sound.

About 3 hours using the supplied USB-C cable. The light near the charging port stays on while charging and turns off once it's fully charged. You can still use Sonata 2.0 while it's charging.

Up to around 20 hours of playback, depending on your volume level and how you use it.

Your Unison glasses, a certificate, instructions, a warranty card, a cleaning cloth, a small hexagon screwdriver, two spare screws, and a zinc-air battery (model PR48).

Unison ships with the temples (arms) detached. Take the battery out of its packaging, peel off the battery film, and wait 60 seconds before installing it. Fit the temples onto the frame at a slight angle first, then push them in parallel until secure. Adjust the position of each vibrator so it sits snugly against your head, just in front of your ear, then tighten the temples using the supplied screwdriver.

No. Unison runs on a replaceable PR48 zinc-air battery rather than a rechargeable one. Please don't attempt to recharge it, as the manual specifically advises against this.

Each temple has its own on/off and volume control. There are three volume levels to choose from, so you can find what's comfortable for you. Please power the device off when it's not in use.

Yes, in five small increments using the supplied screwdriver.

You'll hear a repeated "beep-beep" alert. When you hear this, it's time to replace the battery. If you have vibrators on both sides, we recommend replacing both batteries at the same time.

You can find and download the full instruction manuals for Sonata 2.0, Unison, and our previous models on our downloadable resources page.

Use a soft cloth or a disinfecting cotton swab, lightly dampened with medical alcohol (70-75%), to wipe the parts that contact your skin. Let it air dry fully before wearing again, and keep it away from open flames while damp with alcohol.

Check the battery has charge, then press and hold the power button for a full 3 seconds. A quick press won't be enough to power it on.

If it's switched on but not connected to a device via Bluetooth, it will automatically power off after about 5 minutes to save battery. Simply reconnect and it will stay on as normal.

Check whether the blue light is fast-flashing. If Sonata 2.0 is already connected to another device (like a different phone or speaker), you'll need to disconnect it from that device first before it can pair with a new one.

Try lowering your phone's volume to below 50%. This gives a softer, more private sound. Volumes above 50% are intended for more immersive listening rather than private night time use.

Sonata 2.0 doesn't have its own separate volume control. Volume is adjusted from your phone, so try increasing it there first.

Double-press the M button once to start a timer that turns Sonata 2.0 off automatically after around 30 minutes (the green light will flash slowly to confirm). Double-press again to extend this to around 60 minutes. A third double-press turns the timer off completely.

This is usually caused by one of a few things: the glasses aren't sitting quite right, the volume is set too high, the vibrators aren't making close contact with your head, or the microphone is being blocked by your hand or something nearby. Try repositioning them, lowering the volume, and making sure the microphone is clear.

First check it's switched on, then check the battery isn't low or depleted. Also check that both vibrators are making proper contact with your head, as a poor fit can cause this. If none of that helps, the vibrator itself may be damaged and you should contact our team.

No, please remove it before washing your face, showering, swimming, or heading out in the rain, and take it off during high frequency or ultrasound treatments, high temperature spas, or thunderstorms. If it does get wet, don't use a hair dryer on it. Instead, gently wipe it with a soft, dry cloth and let it air dry naturally in a well-ventilated space.

If you've been through the steps above and it's still not working as expected, please get in touch with our customer care team at customercare@sonovo.co.uk with your order number and a short description of the issue. Please don't attempt to take the device apart yourself.