Skip to product information
1 of 9

CrystalSonics CoreBuds CSC121

CrystalSonics CoreBuds CSC121

CrystalSonics CoreBuds CSC 121 – Unmatched Satisfaction in Earbuds. Experience unrivalled HiFi Audio, Seamless Bluetooth 5.2 connectivity, and an impressive 30+ hours runtime. Elevate your audio journey with premium quality earbuds that won't break the bank!

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Meta Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Venmo
  • Visa
View full details

Unlock Premium Quality Sound without the Premium Price Tag!

Introducing CrystalSonics CoreBuds CSC121 – the ideal earbuds for your audio needs. With top-notch features, including noise cancelling for immersive sound and crystal-clear phone calls, these earbuds elevate your listening experience to new heights. Universally compatible, they effortlessly pair with a wide range of devices, ensuring a seamless connection wherever you go. CrystalSonics CoreBuds bring you all the core features you desire, wrapped in a package that comes at a reasonable price. Upgrade your audio game with CrystalSonics CoreBuds and immerse yourself in the world of superior sound.

👉Get Your Now!
  • Superior Hi-Fi Audio

  • Smart Touch Control

  • Noise Cancelling & Secured Fit

  • Dual Microphones For Call

  • iOS, Android, PC Compatible

  • 30h+ Play Time & Fast Charging

  • World Class Sound Quality

    Indulge in HiFi Stereo sound with our 10mm dynamic driver, accentuating rich mid-range and deep bass, creating an immersive audio feast for your ears. Enjoy crystal-clear calls with noise cancelling technology, ensuring uninterrupted conversations. Plus, our earbuds support both single and dual ear mode, providing flexibility for your listening preferences.

  • Designed For Ears, and For Active Life

    The perfect audio companion for your on-the-go adventures. Engineered for a flawless fit and extended battery life and IPX7 sweetproof, these earbuds are ideal for jogging, biking, yoga, and every physical pursuit in between. The small, medium, and large ear cups ensure a secure and enjoyable fit for hours of listening pleasure.

  • Maximize Your Time, Minimize the Wait

    Fast Charge, Endless Enjoyment. Our wireless earbuds require just 40 minutes for a full charge, providing up to 5 hours of non-stop music. Plus, the charging case extends the playtime to an impressive 30 hours, ensuring you never run out of beats.

  • Smart Touch Control and LED Display

    Discover a whole new level of convenience with our cutting-edge earbuds featuring smart touch controls and an intuitive LED display. Effortlessly manage your music, calls, and settings with a simple tap, while the LED display keeps you informed about battery life. Embrace a seamless audio experience like never before with our state-of-the-art earbuds!

  • "Being tired of headphone cords, I decided to go for these as my first pair of earbuds. After reading favorable reviews, I took the leap, and they haven't disappointed! So far, they work well without any complaints. Plus, the price is unbeatable if you're looking for a budget-friendly option. The sound quality is pretty good too!" Robert B. (Verified Buyer)

  • "I listen to audio books. So my comments of audio book listening not music. I often listen at night when I'm trying to go to sleep. Of all the one's I have purchased, these are the best. They are smaller than all the others thus making them more comfortable. I have purchased several over the years at a much higher price but these are the ones I prefer. I have dropped one in water. It dried out in rice and still works. Great value for this quality !!" Kathy E. (Verified Buyer)

  • "I have to say, these earbuds really surprised me. these earbuds have the best graphical display on the charging case that I've seen. And the overall build quality feels solid and premium - I can tell they're made to last. Considering the price, these are an excellent deal - they offer everything you'd expect from big brands, but without the hefty price tag. I'm genuinely impressed and would highly recommend them to anyone looking for quality and value in their earbuds." Grayson K. (Verified Buyer)

1 of 3

Customer Reviews

Based on 61 reviews
Jen. G
Easy to connect

The earbuds utilize the latest form of Bluetooth, and I must say, they connect incredibly fast every time. I'm no tech expert, but my daughter explained it to me, and she convinced me to give them a try. Now, I'm thrilled with my decision, and I'm even ordering another pair for my husband! These earbuds are truly impressive and easy to use for everyone.

Nathan D.
Worth my money!

When I first came across these earbuds at such a reasonable price, I was skeptical about the sound quality. But let me tell you, I was blown away! The sound is incredibly clear, and I use them for everything – from music to podcasts and even business calls. The best part is how easy it is to switch between functions seamlessly. These earbuds are an absolute steal!

Anthony C
Great Products

The long battery life of these earbuds is a total game-changer for me! In my busy office, with all the talking and distractions, I needed a way to focus and stay productive.

Henk. G
Super Comfortable

I wear these earbuds everywhere I go, and they're incredibly comfortable. They fit so well that sometimes I forget I'm even wearing them! The audio quality is perfect, even when I'm making phone calls in noisy environments. I can't praise them enough – they are truly a top-quality product, and I can't imagine my life without them now!

Malcolm. T
No need to buy expensive ones

I used to go through my old earbuds so quickly, especially during hikes and outdoor activities. They just couldn't withstand the ruggedness of my adventures, and I ended up wasting over $300 on them. I've been amazed at how durable and long-lasting they are. Not only that, the sound quality is far superior, making my outdoor experiences even more enjoyable. These earbuds are a great steal, and I'm thrilled with my purchase!

Got Questions? Check out our FAQs

Are they noise cancelling earbuds?

Yes, our earbuds are noise-canceling earbuds. They utilize intelligent noise reduction technology that automatically detects the surrounding noise and applies the appropriate noise reduction level to provide you with an enhanced listening experience, free from disturbances.

It effectively blocks surrounding noise from reaching the earbud's microphone, guaranteeing that your voice remains clear and uninterrupted, even in noisy environments. Enjoy seamless communication and an immersive audio experience with our advanced noise-canceling earbuds!

How do I control the earbuds and answer calls with touch control?

You can effortlessly control the earbuds and answer calls using the touch control feature:

  • To play or pause the audio, simply tap once on the earbud surface.
  • To adjust the volume, tap the right earbud surface three times to increase the volume, and tap the left earbud surface three times to decrease the volume.
  • To skip to the previous song, tap the left earbud surface twice. To skip to the next song, tap the right earbud surface twice.
  • To answer or hang up a call, just tap once on the earbud surface.
  • To reject an incoming call, perform a long press on the earbud surface for 2 seconds.
  • For activating Siri or voice assistant, perform a long press on the earbud surface for 2 seconds.

Enjoy the seamless and intuitive touch control experience with our earbuds!

Are the earbuds universally compatible with various devices?

Yes, our wireless earbuds offer universal compatibility with most Bluetooth music players, such as smartphones (including Android, iPhone, and others), PCs, and Mac computers. Whether you're using them with your phone on the go or connecting to your computer at work or home, these earbuds ensure seamless audio performance and a reliable connection across different devices. Enjoy the freedom of wireless audio with our versatile earbuds, regardless of your preferred platform! ‎For ios phones: iPhone14 Pro/ iPhone14 Promax/iPhone13 / iPhone12 / 12 MINI / 12 PRO / 12 PRO Max / iPhone11 / 11 PRO / 11 MAX / 11 PRO Max / XS / X / 8/8 Plus / 7/7 Plus / 6/6S / 6 Plus / 6s plus / 5 / 5s / 5c / 4 / 4s.For Android Phones: Samsung Galaxy S10, S10 Plus, Samsung Galaxy S9, S9 Plus, Samsung Galaxy Note 9, Samsung Galaxy Note 8, Samsung Galaxy S8, S8 Plus, Samsung Note 5, Samsung Note 4, Samsung Note 3, Samsung Note 2.Galaxy S7, Galaxy S7 Edge, Galaxy S6, Galaxy S6 Edge, Galaxy S6 Edge Plus, Samsung Galaxy S5, Galaxy S4, Galaxy S3. Galaxy C5samsung Note 4, Samsung Note 3, Samsung Note 2.Galaxy S7, Galaxy S7 Edge, Galaxy S6, Galaxy S6 Edge, Galaxy S6 Edge Plus, Samsung Galaxy S5, Galaxy S4, Galaxy S3. Galaxy C5, C7, C8, C9, Galaxy A5, A7, A8, A9, J7, J8. Huawei, Xiaomi, Zte, Lenovo, Oppo, Vivo, Sony, HTC, LG and other smartphones with iOS 9.0 / Android 5.0 or higher and Bluetooth 4.0 or later

Do the Wireless Earbuds have automatic pairing and a digital display?

Yes, our Wireless Earbuds offer convenient automatic pairing with a digital display feature. Simply open the charging box, and once you remove the earbuds, they will automatically connect to your phone via Bluetooth. No need to go through complicated pairing processes; it's hassle-free and efficient.

Moreover, these Bluetooth earbuds come equipped with an LED power display function, allowing you to easily check the battery level. The display shows the battery percentage from 1% to 100%, ensuring you're always aware of the remaining power and can charge them in time for uninterrupted usage. Stay connected and fully charged with our advanced and user-friendly Wireless Earbuds!