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H2OAudio waterproof headphones - Sonar 2 Pro - Black/Blue

€130

Pre-order In stock In stock Only 12 in stock Sold out - notify me

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H2OAudio waterproof headphones - Sonar 2 Pro - Black/Blue
In stock Only 12 in stock Sold out - notify me

Amount

1 pcs. Buy more and save
Why? Our warehouse is chaos-organized. The same sizes/colors are not placed in the same location. We save money in our handling when we only have to pick from one location - that's why the quantity discount only applies to the same size and color. Consider it a bonus that we share the savings with you.

Only applies to the same size and color

NB! This is a pre-order with delivery in week false (01/01 - 08/01)

We have already confirmed that the delivery of this item is on its way to our warehouse. Read more below.

🚚 Scheduled delivery time: Week false (01/01 - 08/01)

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However, please be aware that this date is indicative, but in 98% of cases, it is met. We cannot specify whether it will be at beginning or the end of the respective week. If this changes for your order, we will always proactively inform you of the new expected delivery date via email.

💰 Free shipping on all pre-orders regardless of the amount

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If you order this product as a pre-order, you will receive free delivery with the cheapest delivery method regardless of the order amount. This also applies to any other other purchased items in the same order.

🖇️ Order will be shipped together with the pre-ordered item

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If you order other products on the same order along with this pre-ordered item, then your entire order will first be shipped together at the same time as the pre.ordered item, which is in week false (01/01 - 08/01).

🔄 365-day return policy starts once when we dispatch the order.

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We will charge the full amount for your order, including the pre-order item and any other purchased items, 2 days after the order is completed. We do this to avoid additional late payment fees. You can still cancel and get a refund for the pre-order item and/or the entire order until dispatch - it just requires a call, a chat, or an email.

NB! Pre-order for week false (01/01 - 08/01)
SOLD OUT
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Free delivery over €59 (under = €4)

Get free delivery to a parcel shop with DHL on orders over 59€. Below that, delivery costs from just 4€. Delivery is 3-5 days for orders placed before 8 PM

365 days free exchange

We (also) hate stress. That's why you have 365 days to exchange/get a voucher. And it's completely free through our returns system. For regular returns, you have a full 30 days. 

Trustpilot 4.7 / 5 ⭐⭐⭐⭐⭐ (+650.000)

We have helped more than 650,000 people with their equipment and swimwear. They have given a Trustpilot score of 4.7 out of 5.0. They all chose Watery because of these unique benefits.

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Description

H2O Audio SONAR 2 PRO – Waterproof Headphones with MP3 and Bluetooth

Experience the freedom of swimming with music — without any compromises. The H2O Audio SONAR 2 PRO enhances the award-winning technology of the original SONAR: it's 40% smaller, lighter, and more comfortable, so you can barely feel you're wearing them.

Combining bone conduction technology with IPX8 waterproofing and an 8GB built-in music storage, you enjoy crystal-clear sound underwater without needing your phone.

Why You'll Love SONAR 2 PRO:

  • Compact and Lightweight Design: 40% smaller than its predecessor — fits snugly without discomfort.

  • Bone Conduction Sound: Experience sound through your cheekbones, allowing you to stay aware of your surroundings.

  • Built-in MP3 Player: Store up to 8GB of music or podcasts directly on the device.

  • Bluetooth Connectivity: Stream music from your smartwatch or phone (within short range).

  • Long Battery Life: Provides up to 10 hours of playtime, perfect for multiple swim sessions.

  • 100% Waterproof (IPX8): Tested at depths of up to 3 meters, specifically designed for swimming, not just sweating.

  • Easy Controls: Large, tactile buttons make it simple to manage your music even with wet fingers.

Everything You Need in One Device

With both Bluetooth and MP3 player integration, SONAR 2 PRO lets you choose what works best for you. Want music directly from your smartwatch? Simply connect via Bluetooth and attach the watch to your swim goggles. Prefer the freedom of no signal restrictions? Use the PLAYLIST+ feature to save music locally on the device.

Underwater, the Bluetooth range is only a few centimeters, so we recommend using the built-in memory for the best experience.

Compatible with H2O Audio App

Manage your music, create folders, and update software directly from the free H2O Audio PRO App (available for iOS and Android).

In the Box:

  • SONAR 2 PRO headset

  • Protective case

  • USB charging cable

  • Blue earplugs

  • User manual

Want the ultimate swimming experience with your own soundtrack underwater?
H2O Audio SONAR 2 PRO is made for swimmers who settle for nothing less.

SKU: 22741

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Features / benefits

  • 40% smaller and lighter than the original SONAR – provides a streamlined fit in the water.
  • Bone conduction technology ensures clear sound underwater without blocking your ears.
  • 100% waterproof (IPX8) – works up to 3 meters deep.
  • Built-in MP3 player with 8GB memory – room for over 2,000 songs.
  • Bluetooth connection to smartphone, computer, and smartwatch.
  • PLAYLIST+ feature allows you to store music directly on the device.
  • Up to 10-hour battery life – swim continuously without running out of power.
  • Compatible with Apple Watch, Garmin, Fitbit, and Samsung watches.
  • Large tactile buttons – easy operation, even with wet hands.
  • Open-ear design provides full situational awareness during training.
  • Easy to connect via USB – drag and drop your music directly from a computer.
  • Comes with a protective case, charging cable, and earplugs.

Material

  • Made from lightweight and durable plastic and silicone, resistant to chlorine and saltwater.
  • Waterproof construction with IPX8 certification – tested to a depth of 3 meters.
  • Built-in bone conduction speakers in titanium-coated material for optimal sound quality underwater.

Questions & answers

  • Can I use the SONAR 2 PRO entirely without a phone?

    Yes, the SONAR 2 PRO features a built-in MP3 player with 8GB of storage, so you can swim completely hands-free—no phone or watch needed.
  • How does bone conduction technology work?

    Bone conduction technology delivers sound through your cheekbones instead of your ear canal, offering clear audio while keeping your ears open.
  • Is the Bluetooth connection stable underwater?

    Bluetooth provides stable performance underwater only if your device is very close (such as attached to your swim goggles). For greater range, we recommend using the MP3 mode.
  • How do I transfer music to the MP3 player?

    Connect the device to your computer via USB to transfer music files directly—both MP3 and Apple iTunes formats (.m4a) are supported.
  • How long does the battery last on a full charge?

    The battery offers up to 10 hours of playtime per full charge, depending on volume and usage.
  • Can I use the SONAR 2 PRO in seawater or a pool?

    Yes, it's fully waterproof with IPX8 certification and is suitable for both pool and open water swimming—simply rinse after use to prolong its lifespan.

Maintenance

  • Rinse the unit with fresh water after use in the pool or sea to extend its lifespan.
  • Ensure that the charging port is completely dry before charging.
  • Store in the provided case when not in use to protect against scratches and dust.

Recommended for

  • Age Group: Teenagers and adults.
  • Type: Swimmers, triathletes, and recreational swimmers who want music during training – both in the pool and open water.

Delivery & returns

  • DELIVERY

    Watery is known for its lightning-fast delivery - we pack and ship orders, both on weekdays and weekends, every day of the year. We even do this until 10:00 PM every day of the week, so you can get lightning-fast delivery.

    ➡️ Free shipping on orders over €59

    ➡️ Order by 7:00 PM for fastest delivery

    ➡️ 99.6% are shipped within 24 hours

    READ MORE ABOUT DELIVERY
  • RETURNS

    Do you want to exchange, get a refund, or have a complaint? Don't worry! We ensure a smooth and easy return process. We believe (also) that there are many other things in life that are more fun to spend your time on.

    ➡️ 365 days return policy (yes, it's true!)

    ➡️ Free exchanges for other sizes and colors

    ➡️ 24-hour processing time on weekdays

    READ MORE ABOUT RETURNS

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Do you have questions about products, recommendations, or returns? Click here to ask our product experts and customer service between 8 AM - 10 PM via chat and email + 8 AM - 4 PM by phone on weekdays. We look forward to hearing from you.

Free exchange / easy returns

Yes, that's right. Exchange is completely free when using our fast return system - without the need for a printer. Click here to learn more. Regular returns cost €5.

Free 3-5 days shipping over €59

Delivery is on us when you purchase for over €59. Below that threshold, it costs starting from €4. We deliver with DHL Connect.

In doubt? Check out our recommendations.

Not sure if this is the right product for you? Click here to see our detailed product recommendations. Handpicked by our founder.

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