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H2O Audio CB1-BK Flex All Sport Waterproof In-Ear Headphones (Onyx Black) (Discontinued by Manufacturer)

3.7 out of 5 stars 95 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Onyx Black
Standard Packaging
Brand H2O Audio
Color Onyx Black
Form Factor In Ear
Connectivity Technology Wireless
Special Feature Lightweight

About this item

  • Powered by H20 Audio, these headphones are sweatproof and waterproof
  • Designed for athletes in all sports
  • 100% waterproof up to 3 feet of depth
  • Rich, full-range sound from 9mm drivers
  • Easy to clean--just rinse with water

Additional Details

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Product Description

Product Description

Don't let sweat or moisture corrode your headphones--go waterproof. Powered by H2O Audio's patented waterproof technology, the Flex All-Sport Waterproof headphones are built to withstand heavy perspiration and submersion up to 3ft/1m underwater for up to 30 minutes, making them perfect for athletes in all sports. Three different sizes of Elastomer ear plugs make it easy to find the stay-put fit that's best for you. Better fit also means better noise isolation for quality sound in the water or out. Best of all, they simply rinse clean for easy maintenance.

From the Manufacturer

Serious Sound, Seriously Waterproof

H2O Audio is the leading provider of high-performance waterproof, sweatproof sport headphones and accessories for active people everywhere. Developing products in collaboration with some of the world's most celebrated athletes, Team H2O Audio includes; Gold Medal Swimmer Natalie Coughlin, World Class Triathletes, Greg and Laura Bennett, and Elite Stand Up Paddler Slater Trout. As athletes they're at the top of their sport, and reflect our passion for performance. Studies show that music plays a critical role in training, improving pacing, sustaining motivation and making workouts more fun. No matter your athletic level, training with music – in any environment - only makes you better!

Greg Bennett World Class Triathlete wearing the Flex All Sport Waterproof HeadphonesBuilt to withstand heavy perspiration, rinsing after use and complete submersion underwaterThe Flex All Sport Waterproof Headphones
comes in Onxy Black, Super Hero Blue,
Envy Green and Power Pink

H2O Audio offers a functional, complete, waterproof, sweatproof solution for almost any athletic pursuit. Our first product redefined the concept of portable music by allowing divers to bring music to 300 ft. below the surface. Now expanded into a collection of waterproof headphones, armbands and cases, H2O Audio removes boundaries and allows all athletes, and all people, to enjoy listening to music in any environment including in, around and under water.

You can't stop this sound! Through water, sweat, rain and whatever you can put them through Flex All Sport Buds will keep delivering clear and rich sound. Affordable and personal, pick from 4 colors and 3 ear plug sizes for a combo that's uniquely yours. Whether you're working out or hanging out, these headphones are more than just your average ear bud!

100% Waterproof // Sweatproof

Don't let sweat or moisture ruin your headphones, go waterproof! H2O Audio's patented waterproof technology allows these headphones to withstand heavy perspiration, rinsing after active use and even submersion up to 3ft./1m underwater. Stop replacing your earbuds due to sweat and moisture corrosion, get the waterproof solution and let the music play on.

Personal and Versatile

No matter where you're going or what you're doing, Flex headphones will stay with you. All ears are created differently, so three different sizes of Elastomer ear plugs make it easy to find the stay-put fit that's best for you. Better fit also means better noise isolation for quality sound in the water or out.

Small Price, Big Sound

Flex Headphones deliver clear, rich sound through 9mm drivers. Flex doesn't sacrifice sound quality for durability or price.

For Athletes, For You

Stand up paddle, run in the rain, layout by the pool or relax in the bath. Workout harder and longer with your own uninterrupted soundtrack, rinse them off after the baby drools on them or just kick back. These are headphones that can keep up with whatever life throws at you, so go ahead, get 'em wet!

H2O Audio
Waterproof Sport Headphones
Comparisons Chart

Surge Pro Mini
Waterproof Sport Headphones
Surge Contact 2G
Waterproof Sport Headset
Surge 2G
Waterproof Sport Headphones
Surge Sportwrap 2G
Waterproof Sport Headphones
Trax Waterproof Sweatproof Custom Fit Headphones
Flex All Sport
Waterproof Headphones
Distinguishing FeatureBalanced Armature Drivers
for Accurate Sound &
Compact Size for a better fit
Aerodynamic Design with
in-line Waterproof Microphone
& one-touch answer/end button
Aerodynamic Design with
Dynamic Drivers for
Powerful Sound & Deep Bass
Aerodynamic Designed Earbuds
with Neckband &
Coiled Cable for Stable Fit
Unique Moldable Memory Ear Hooks for a Stay-Put FitColorful, Affordable and
100% Waterproof
Waterproof Depth Rating12ft for an
Unlimited Amount of Time12ft for an
Unlimited Amount of Time12ft for an
Unlimited Amount of Time12ft for an
Unlimited Amount of Time3ft for 30mins3ft for 30mins
Headphone TypeIn-EarIn-Ear With inline
Waterproof MicrophoneIn-EarIn-Ear with NeckbandAngled In-EarIn-Ear
Recommended SportsEarplug Styles/Sizes5 Elastomer (XS-XL),
2 Foam (S/M & M/L)5 Elastomer (XS-XL)5 Elastomer (XS-XL)5 Elastomer (XS-XL)5 Earplugs:
3 Soft Round S-L,
1 Set M/L Soft Memory Foam,
1 Set Small Tree Tip3 Elastomer (SM, MD & LG)
Color    Driver TypeBalanced ArmatureDynamicDynamicDynamicDynamicDynamicDriver Size6mm8mm8mm8mm9mm9mmFrequency Response18-20,000Hz18-20,000Hz18-20,000Hz18-20,000Hz20-20,000Hz20-20,000HzImpedance56Ω16Ω16Ω16Ω16Ω16ΩMax Input Power5Mw5Mw5Mw5Mw5Mw5MwCable Length3.9ft3.9ft3.9ft2ft Coiled3.9ft3.9ftHeadphone Plug Type3.5mm Gold Plated3.5mm Gold Plated3.5mm Gold Plated3.5mm Gold Plated3.5mm Gold Plated3.5mm Gold PlatedWarranty1 Year Warranty1 Year Warranty1 Year Warranty1 Year Warranty1 Year Warranty1 Year WarrantyCompatibilityH2O Audio Waterproof Armbands
H2O Audio Waterproof Cases
Standard 3.5mm Headphone Jacks

Customer reviews

3.7 out of 5 stars
3.7 out of 5
95 global ratings

Top reviews from the United States

Reviewed in the United States on January 18, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
4 people found this helpful
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Reviewed in the United States on July 18, 2013
Color: Super Hero BlueProduct Packaging: Standard PackagingVerified Purchase
One person found this helpful
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Reviewed in the United States on March 5, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on February 6, 2015
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
2 people found this helpful
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Reviewed in the United States on June 4, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on March 17, 2013
Reviewed in the United States on February 12, 2013
Color: Power PinkProduct Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on March 2, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase

Top reviews from other countries

Miss Pea
5.0 out of 5 stars Excellent!
Reviewed in the United Kingdom on November 9, 2012
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
Karan Douglas
2.0 out of 5 stars H20 audio waterproof headphones
Reviewed in the United Kingdom on September 6, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase
Gary P
1.0 out of 5 stars Poor build quality
Reviewed in the United Kingdom on January 11, 2013
Color: Power PinkProduct Packaging: Standard PackagingVerified Purchase
Elle-Jay
3.0 out of 5 stars Good - but, don't seem to last more than a year, even with extreme caution and gentle care of the wires!
Reviewed in the United Kingdom on December 11, 2014
Color: Power PinkProduct Packaging: Standard PackagingVerified Purchase
brian welch
1.0 out of 5 stars Reliability of the product needs investigating
Reviewed in the United Kingdom on February 10, 2013
Color: Onyx BlackProduct Packaging: Standard PackagingVerified Purchase