OpenRock S2 Open-Ear Sports Earbuds, Designed for Everyday Use

I didn’t expect to be blown away by a pair of earbuds. The moment I hit the jogging track for the first time with the OpenRock S2 all set up, I immediately realized something had changed. I could listen to the beat of my playlist while I felt soothed by the early birds as they continued to chirp. That’s the true magic of air conduction earbuds.

For day-to-day commuting, working, and walking, the OpenRock S2 isn’t just a regular earbud; it is your ultimate partner. It features powerful sound delivery, a comfortable fit, and an open-ear air conduction design, allowing you to enjoy listening to music without isolating yourself from the world while remaining aware of your surroundings.

Whether you are out for a jog or walking the dog, these earbuds won’t budge and will stay in place, continuing to perform flawlessly.

OpenRock S2 offers great sound quality, all-day comfort with open-ear style, 32 hours of total battery life, crystal-clear calls, and a rock-solid fit with no sweaty ear fatigue. It is not just another earbud; it is a gadget that matches your active lifestyle.

Currently retailing at $98.99, these earbuds won’t break the bank, and there is a higher chance they will become your new favorite as they deliver sound quality you are going to love. You can use the code ANDROIDS2 and enjoy 20% off, which brings the price down to $79.20.

With the discount in place, bringing the price to a reasonable point, is OpenRock S2 worth enough to spend your money on? Let’s take a deep dive into the review and find out.

Specifications

OpenRock S2 box back Specifications

Here are the specs of the OpenRock S2 open-ear wireless earbuds:

ModelOpenRock S2
TypeOpen-ear wireless earbuds
Weight58g (total) / 7g (single earbud)
Speaker Driver Size12mm
Bluetooth Type6.0
Bluetooth Connection Distance>10m
Battery Life8 hours (earbuds) / 32 hours (including charging case)
Battery Capacity57mAh (earbuds) / 450mAh (charging case)
Battery TypeLithium-ion polymer
Waterproof RatingIPX5
Audio Codec SupportLDAC, SBC, AAC
Frequency Range20Hz – 20kHz

Design

OpenRock S2 case front opened
  • The case is lightweight and small
  • Buds are featherlight
  • Open-back and hook-clip design
  • Analog buttons

Immediately after pulling the OpenRock S2 case out of the packaging, I could tell that these earbuds weren’t just made; they were exceptionally engineered. The overall feel and design of the pebble-shaped case is well built and sturdy, while it gives an elusive 3D visual effect when placed under flat lighting.

The charging case alone weighs 44 grams and features a unique pattern, utilizing a speckled coating along with a textured finish that gives each unit a distinct look. It also provides a comfortable grip, so I can take it with me wherever I go, whether for outdoor adventures or running.

Opening the case revealed a perfect pair of earbuds featuring a flexible hook-clip design made of 0.6mm titanium filaments and medical-grade liquid silicone materials, suggesting something deeper. These are designed by people who understand movement.

These flexibilities ensure S2s fit perfectly around my ears. Their lightweight design weighs just 7 grams each and guarantees they aren’t going anywhere, regardless of how rigorous the activity I am doing. A perfectly suitable pair of earbuds when crushing a HIIT session.

Since these earbuds are being marketed towards fitness enthusiasts, rather than the traditional in-ear buds that go right into your ear canal, the OpenRock S2 features an ear hook while offering air conduction, to help earbuds stay put while providing maximum comfort and completely eliminating ear fatigue and sweat.

It features a pressure-diffusion design that works like a shock absorber while evenly distributing weight across eight contact points. I felt it was exclusively designed to hold its true shape, giving a secure fit like it was custom-built for my ear.

With an IPX5 rating, these earbuds offer triple defense and lasting protection, built to tolerate intense workouts thanks to the ergonomically optimized wearing position that allows sweat to slide off naturally while significantly reducing direct contact with the earbuds. Moreover, designers have put a nano-coating on the components, which increases the overall durability.

Hardware buttons are smartly unified into the design, and I was able to use them to control the music while running without needing to slow down. I found them responsive and easy to use. However, since these are placed at the bottom, you need to press upwards while continuing to hold the earbuds; otherwise, you are going to push them out of your ear.

Fit and Comfort

OpenRock S2 case closed in hand

They are so nicely designed, seamlessly comfortable, and super lightweight that it doesn’t even feel like you are wearing them. This is what makes the fit even better.

My earbuds used to fall out halfway through a long run or during a vigorous HIIT session. This is why fit is really critical for me, and OpenRock S2 truly delivers it, and the earbuds stayed in throughout the workout session.

Beginning from my first run to the end of the circuit, these earbuds stayed in place, remained stable, and due to the earbuds being lightweight, they felt like they almost disappeared during the extended wear. I didn’t have to do readjustments every once in a while, as they remain sturdy without slipping, even when I hit a sprint. This allowed me to remain focused on my running session.

What makes it the most comfortable is the open-ear design, as my ear canals stay open, and it doesn’t build up any pressure or sweat. You might feel differently from me. This openness allowed me to feel the breeze and even helped in staying alert, especially when I am jogging in traffic, while I continued to enjoy my playlist.

Also, not to forget the medical-grade liquid silicone material, it gave that pleasant feeling against the skin, and I felt no irritation whatsoever even when I wore it for all-day scenarios.

Performance and Sound Quality

OpenRock S2 box front
  • 12mm driver delivers deep bass
  • BassDirect technology
  • LDAC, SBC, and AAC codecs

Although factors like the overall design of the earbuds and how comfortably they fit are important, at the same time, sound quality and performance are important too. And since OpenRock S2 are air conduction earbuds so there are chances you might not expect deep bass or crisp vocals. However, as I continued to use these, I was surprised by the sound quality, and I actually enjoyed the music.

The bass is where we all believe these earbuds won’t perform, but it managed to deliver deep and punchy bass regardless of the music I was listening to. This means the 12mm driver powered by BassDirect technology, coupled with TubeBass technology, has been successfully delivering enhanced bass while ensuring minimal sound leakage.

The earbuds support LDAC, SBC, and AAC codecs, whereas the LISO 2.0 algorithm built right into the earbuds’ board smartly adjusts the balance between bass and treble to ensure a rich and immersive sound experience is delivered.

During my tests, I have listened to a lot of EDM as well as motivational podcasts, and these earbuds never fail to deliver sound clarity, that too without sacrificing the awareness of my surroundings. As you are already aware of the fact that most open-ear earbuds don’t offer noise cancellation.

There are some other interesting features available too, but they require you to install their app, which gives you access to find my buds, hearing guardian, spatial sound, and equalizer customization with some predefined EQ options, including rock, relax, and boom, all of which are designed to help you cater to specific experiences.

Battery Life

  • 32 hours of total run time, including charging case
  • 8 hours per earbud

I don’t know about you, but the battery life of earbuds is one of the major deciding factors for me. The time it lasts between each full charge is something that is either going to make or break the deal. No matter how comfortable the earbuds are, how perfectly they are designed, and how good they perform, if they don’t last long enough, then there is a chance you will be using them less.

However, the best thing about OpenRock S2 is that these earbuds last eight hours on a single charge, meaning 8 hours of non-stop music sessions. And with the charging case, you can easily add another 24 hours. So, in total, you are going to get a play time of 32 hours.

This means you can go days, around 4 to 5 days, without needing a wall socket to recharge the earbuds case. And based on these extensive tests I have performed playing around with it, these earbuds are easily going to survive multiple training days and work days.

Key Features

  • Customizable gesture controls using a physical button
  • Using earbuds as a remote shutter for your phone’s camera
  • 4-mic AI noise cancellation

Just like any other earbuds, OpenRock S2 comes with standard features that are available on most of the earbuds you see on the market. However, apart from those, certain features are unique and caught my attention.

Let’s discuss those…

Gesture controls, and it does wonders, especially when you are running or in between your training and can’t take out your phone. These controls are customizable according to your needs and ease of usage.

A single press of a button will answer or hang up calls, or play and pause music. Double-press will reject an incoming call or skip music. Triple-press will play the previous music. Quadruple press is dedicated to being used for a camera shutter. And then there is a long-press gesture as well, which is fully customizable for each earbud.

Another notable feature is using earbuds as a remote shutter for your phone’s camera. This is a unique feature and isn’t commonly found in earbuds. Since these have a physical button mounted onto the earbuds, which means it can be used to trigger the shutter and capture photos hands-free.

It is a really handy feature, especially in those cases when you want to take a group picture and have your phone set up on a tripod or lean it against an object so the whole group can be in the picture. Once set up, all you need to do is stand afar and simply press the button 4 times, and your phone camera will capture the photo.

Price and Availability

OpenRock S2 was released in June 2025 and is officially available on Amazon and OpenRock’s official website for a retail price of $98.99. These earbuds are being delivered worldwide.

Currently, you can use the code ANDROIDS2 and immediately get a 20% discount, which brings the price down to $79.20.

Should You Buy the OpenRock S2 earbuds?

OpenRock S2 in the box

OpenRock has smartly priced their latest S2 earbuds, making them more affordable compared to other open-ear earbuds from the major brands in the market, like Huawei and Nothing, which actually opens up options for people who are opting for these brands while saving money.

To help you make up your mind and decide whether you should buy these earbuds, here we have pointed out some pros and cons that could be the decisive factor:

Pros

  • Budget Friendly: If you are looking for something affordable and under $100, then these could be one of the best budget-friendly earbuds.
  • Lightweight: OpenRock S2 is an ultra-lightweight pair of earbuds, and even the case itself is light and easy to carry around.
  • Open-ear: For anyone comfortable with the open sound profile, whether it is for music or podcasts, then OpenRock S2 would be the perfect earbuds for you.

Cons

  • Max Volume Limitations: When using these in busy areas, even with the volume all the way to the max, you won’t be able to eliminate the environmental noise since OpenRock S2 has no noise cancellation.
  • Less Bass: Having an open-ear design, OpenRock S2 might not deliver on the bassy side of the music.