If you want waterproof, wired earbuds for swimming and sweaty workouts, choose H2O Audio Surge Waterproof Sport; if you need wireless noise cancellation and call-focused features for a call center, choose 1MORE SonoFlow-Pro Noise Cancelling. For a desk-based call center, the 1MORE is the more relevant fit; the H2O is built around water, not office calls.
• H2O Audio Surge Waterproof Sport’s biggest strength: IPX8 waterproofing for submersion up to 12 feet (3 meters), with a snug, sound-isolating in-ear fit. Trade-off: wired, with no Bluetooth.
• 1MORE SonoFlow-Pro Noise Cancelling’s biggest strength: active noise cancellation, call-oriented microphone features, Bluetooth 5.4, and up to 100 hours of playtime in standard mode. Trade-off: over-ear design, with no stated waterproof rating.
• H2O Audio Surge Waterproof Sport is for swimming, water sports, and workouts where a wired, water-resistant setup is the priority.
• 1MORE SonoFlow-Pro Noise Cancelling is for desk work, travel, and calls where wireless listening and active noise cancellation matter.
• For most call-center use, I’d choose the 1MORE; for time in the water, I’d choose the H2O Audio.
H2O Audio Surge Waterproof Sport: Who It's For
The package includes five sets of earplugs in sizes XS through XL, plus three sets of tree-tip earplugs. That range gives buyers options for finding a secure, watertight fit. The sound-isolating design and bass-forward tuning are aimed at an immersive workout listen, while the 3.5 mm wired connection avoids relying on Bluetooth.
That same design is why I would skip it for a call center. It is not a Bluetooth headset, and the supplied information does not describe a call microphone or active noise cancellation. It may suit someone who wants wired, deep bass in ear headphones for call center listening only, but it is not the stronger choice for handling calls or reducing office noise. Its strengths are water protection and sport use, not desk communication.
The 1MORE SonoFlow-Pro is an over-ear Bluetooth headphone with active noise cancellation, Bluetooth 5.4, and a stated wireless range of 10 meters. Its QuietMax ANC is described as reducing external noise by more than 45 dB. For someone working around steady background sound, that feature is much more relevant than the H2O’s water protection.
Call use is also part of its stated feature set. The product description identifies an advanced microphone and AI noise reduction for calls, making it the more purpose-aligned option for a call center. That does not establish how it will perform in every office or on every call platform, but the design and listed features give it a clear advantage over the H2O for voice communication.
Battery life is another practical difference: up to 100 hours in standard mode and 65 hours with ANC on, with a stated five-minute quick charge providing up to 10 hours of listening. The trade-off is its over-ear form. It is not a compact in-ear sport model, and no waterproof rating is provided. I would choose it for work, travel, or long listening sessions—not swimming or wet workouts.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 11 min read · Independent comparison
• Best for swimming → H2O Audio Surge Waterproof Sport. It is rated IPX8 and described for submersion up to 12 feet (3 meters); no water rating is listed for the 1MORE.
• Best for wireless desk use → 1MORE SonoFlow-Pro Noise Cancelling. It uses Bluetooth 5.4 and has a stated 10-meter range.
• Best for a wired listening setup → H2O Audio Surge Waterproof Sport. Its connection is wired, with a 3.5 mm jack.
• Best for long stretches between charges → 1MORE SonoFlow-Pro Noise Cancelling. The stated maximum is 100 hours in standard mode, or 65 hours with ANC enabled.
• Best for a secure fit during water sports → H2O Audio Surge Waterproof Sport. It comes with multiple earplug options and is designed around a watertight in-ear fit.
• Best for noise reduction at work → 1MORE SonoFlow-Pro Noise Cancelling. It has active noise cancellation; the H2O provides sound isolation through its earplug fit instead.
• Best lightweight Bluetooth earbuds for call center use → neither is a close match to that exact description. The H2O is wired and in-ear, while the 1MORE is Bluetooth but over-ear. For the actual call-center need, I’d still favor the 1MORE because it lists call features and ANC.
I would buy the 1MORE SonoFlow-Pro Noise Cancelling for a call center because its ANC, Bluetooth connection, long stated battery life, and call-focused microphone features fit that job better.
The H2O Audio Surge Waterproof Sport is the more specialized pick, and I’d choose it for swimming or wet workouts.
If your main priority is handling calls in a call center, my recommendation is the 1MORE—not the waterproof sport earbuds.
The 1MORE is the better fit on the listed features: it has active noise cancellation and a microphone with AI noise reduction for calls. The H2O is a wired sports earphone, and no call-microphone feature is specified.
It is rated IPX8 and described for submersion up to 12 feet (3 meters). Its multiple earplug options are intended to help establish a watertight fit; it is the water-focused choice of these two.
Yes. It lists QuietMax active noise cancellation and up to 65 hours of playtime with ANC on, or up to 100 hours in standard mode. Actual use can vary with settings and conditions.
Neither product is described as a neckband headphone. The H2O is a wired in-ear model, while the 1MORE is an over-ear Bluetooth headphone; for call-center features, the 1MORE is the more suitable of the pair.
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If you want waterproof, wired earbuds for swimming and sweaty workouts, choose H2O Audio Surge Waterproof Sport; if you need wireless noise cancellation and call-focused features for a call center, choose 1MORE SonoFlow-Pro Noise Cancelling. For desk-based calls, the 1MORE is the more relevant fit; the H2O is built around water and sports.
H2O Audio Surge Waterproof Sport vs 1MORE SonoFlow-Pro Noise Cancelling at a Glance
• H2O Audio Surge Waterproof Sport’s biggest strength: IPX8 waterproofing for submersion up to 12 feet (3 meters), with a sound-isolating in-ear fit. Trade-off: wired, with no Bluetooth.
• H2O Audio Surge Waterproof Sport is for swimming, water sports, and workouts where water protection matters.
• 1MORE SonoFlow-Pro Noise Cancelling is for desk work, travel, and calls where wireless listening and noise cancellation matter.
• For most call-center use, I’d choose the 1MORE; for time in the water, I’d choose the H2O Audio.
The H2O Audio Surge Waterproof Sport is a wired in-ear headphone designed for water and movement. Its IPX8 rating and stated submersion capability of up to 12 feet (3 meters) make it the clear fit for lap swimming and other activities where ordinary headphones are a poor match. It also suits running, biking, and workouts where rain or sweat is part of the setting.
The package includes five sets of earplugs in sizes XS through XL, plus three sets of tree-tip earplugs. Those options let you choose a fit that feels secure and helps seal out water. The sound-isolating design and bass-forward tuning suit workout listening, while the 3.5 mm wired connection avoids relying on Bluetooth.
That same sport-focused design is why I would skip it for a call center. It is not a Bluetooth headset, and the listed information does not specify a call microphone or active noise cancellation. It could suit someone seeking deep bass in-ear headphones for listening during work, but it is not the stronger choice for handling calls or reducing office noise. Its strengths are water protection and sport use, not desk communication.
The 1MORE SonoFlow-Pro is an over-ear Bluetooth headphone with active noise cancellation, Bluetooth 5.4, and a stated wireless range of 10 meters. Its QuietMax ANC is described as reducing external noise by more than 45 dB. For someone working around steady background sound, that feature is more relevant than the H2O’s water protection.
Call use is part of its stated feature set. The product information describes an advanced microphone and AI noise reduction for calls, making it the more purpose-aligned option for a call center. That does not tell us exactly how it will perform in every office or with every call platform, but its listed features give it a clear advantage over the H2O for voice communication.
Battery life is another practical distinction: up to 100 hours in standard mode and 65 hours with ANC on. A stated five-minute quick charge provides up to 10 hours of listening. The trade-off is its over-ear form. It is not an in-ear sport model, and no waterproof rating is listed. I’d choose it for work, travel, or long listening sessions—not swimming or wet workouts.
• Best for a call center → 1MORE SonoFlow-Pro Noise Cancelling. It has ANC and specified call features, while the H2O information does not list a call microphone.
• Best for swimming → H2O Audio Surge Waterproof Sport. It is rated IPX8 and described for submersion up to 12 feet (3 meters); no water rating is listed for the 1MORE.
• Best for wireless desk use → 1MORE SonoFlow-Pro Noise Cancelling. It uses Bluetooth 5.4 and has a stated 10-meter range.
• Best for a wired listening setup → H2O Audio Surge Waterproof Sport. It has a wired connection and a 3.5 mm jack.
• Best for long stretches between charges → 1MORE SonoFlow-Pro Noise Cancelling. The stated maximum is 100 hours in standard mode, or 65 hours with ANC enabled.
• Best for water sports → H2O Audio Surge Waterproof Sport. It comes with multiple earplug options and is designed around a watertight in-ear fit.
• Best for noise reduction at work → 1MORE SonoFlow-Pro Noise Cancelling. It has active noise cancellation; the H2O provides sound isolation through its earplug fit instead.
• Best lightweight Bluetooth earbuds for call center use → neither is an exact match. The H2O is wired and in-ear, while the 1MORE is Bluetooth but over-ear. For the call-center need, I’d still favor the 1MORE because it lists call features and ANC.
My Verdict
The H2O Audio Surge Waterproof Sport is the more specialized option, and I’d choose it for swimming or wet workouts.
If my priority were handling calls in a call center, my pick would be the 1MORE—not the waterproof sport earbuds.
FAQ
The 1MORE is the better fit on the listed features: it has active noise cancellation and a microphone with AI noise reduction for calls. The H2O is a wired sports earphone, and no call-microphone feature is specified.
It is rated IPX8 and described for submersion up to 12 feet (3 meters). Its multiple earplug options are intended to help establish a watertight fit, making it the water-focused choice of these two.
Yes. It lists QuietMax active noise cancellation and up to 65 hours of playtime with ANC on, or up to 100 hours in standard mode. Actual playtime can vary with settings and conditions.
Neither product is described as a neckband headphone. The H2O is a wired in-ear model, while the 1MORE is an over-ear Bluetooth headphone. For call-center features, the 1MORE is the more suitable of the pair.
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