A Marvel of 11 Hours
Enjoy the Hi-Fi Sound with Ultra-High Sensitivity
Premium True Wireless Earbuds
Premium True Wireless EarbudsIHi-Fi Stereo SoundIDual Mode 11 hours of Continuous Playback
Single Mode up to 240 hours Playback I Very High Sensitivity Embedded AntennaIMulti Cast Synchronization Technology
2600mAh High Capacity Cradle I Power Bank Functionality for Your SmartphoneIDigital LCD Battery Indicator
Bluetooth 5.0I Volume Adjustment by Button I Auto On/Off & Auto PairingIMagnetic Charging Cradle
High Quality Sound Hands Free (Dual Voice Receiver)IUSB-C I High Sensitivity Dual Microphone I IPX5 Waterproof
Classy Metal DesignIErgonomic Secure Fit I 4 Different Kinds of High Quality EartipsISpeech Recognition Function
11 Hours of Continuous Playback in Dual Mode Up to 240 Hours of Playback
in Single Mode
Enjoy continuous music playback for 11 hours in stereo Dual mode using the earphones' battery only with our large-capacity battery and low-energy technology. COWON CK11's 2600 mAh high capacity battery can recharge your earphones more than 10 times boasting more than 240 hours of long playback time when alternating charging and playback in Single mode.
Dual Mode Single Mode Based on alternating playback and recharging in Single Mode
11 11 240
* Based on alternating playback and recharging in Single Mode. Performance may vary depending on actual usage environment.
Very High Sensitivity Laser
Embedded Antenna and Cutting-Edge Airoha Chip
COWON CK11 is also equipped with a customized LDS(Laser Direct Structuring) antenna, exclusively designed and laser-shaped for CK11. There is no interruption when on the move, whether on a subway or bus, and seamless sound is maintained in open spaces for up to 40 meters. In addition, with the latest Airoha chip, you can experience excellent quality Bluetooth earphones with many advantages such as low power support, high sensitivity reception and stable data transmission.
Fully Wireless Earphones with Hi-Fi Stereo Sound
Sound by COWON
The latest Airoha chip in the COWON CK11 provides enhanced audio and voice capabilities with its built-in
Tensilica HiFi EP DSP as well as clear call and premium sound for superb audio quality.
Enjoy the premium Hi-Fi sound with superior high and low sound and optimal balance achieved through the delicate tuning by COWON Systems, a company committed to innovation and the development of high-quality sound products.
Feel the difference with the clear and delicate wireless sound.
Left and Right Earphones Connected Simultaneously
with MCSync Technology
The Airoha chip with MCSync technology applied in COWON CK11 provides enhanced user convenience through an individual wireless connection of the left and right earphones where both earphones work independently without affecting each other even when you turn off or turn on one of them in Dual mode. In addition, a more stable connection is achieved through the simultaneous connection of the left and right earphones instead of a main-to-sub type connection.
2600 mAh High Capacity Cradle:
Get a month's Use from a Single
Charge & Use as a Backup Battery
The capacity of 2600 mAh is enough to recharge the earphones more than 10 times. With this high-capacity charging cradle, one full charge lasts for a month in Dual mode. You can also use the cradle as a backup battery. It's very useful when you need to charge your smartphone.
Digital Battery Indicator
for a Quick Battery Level Check
Check the battery level at a glance. The battery levels of the charging cradle and the left and right earphones are displayed on the LED display.
Bluetooth V5.0
for a Faster, Farther Wireless Connection
Bluetooth 5.0 is twice as fast as the previous iteration and offers four times the range and eight times the data bandwidth.
The double transmission speed reduces transmission time and battery consumption, and quadruple range allows seamless connections up to 40 meters in low-power mode. Relish in the joy of wireless with the improved performance of Bluetooth 5.0.
Complete the Pairing just by Opening the Cradle Lid All you need to do is opening the lid of the charging cradle. Our upgraded Auto Power-on and Auto Pairing features will turn the power on automatically and start pairing immediately. You can start pairing one step faster without needing to take out the earphone first. Enjoy a more convenient wireless connection with COWON CK11.

* Auto-pairing is available once the initial device pairing has been completed.
One Button to Control Them All
One-click Volume Control Feature
All earphone controls are available via a single button. The convenient multi-function button handles various functions such as power on/off, Bluetooth pairing, music playback, and calls. COWON CK11 also features a volume control that conveniently allows you to adjust the volume by clicking the button on your earphones without taking out your smartphone.
One-Press Smart Speech Recognition
Google / Siri Activation
To use a speech recognition feature such as Google Assistant or Siri, press
the earphone button 3 times. Smart speech recognition is just at the tip
of your fingertips.
USB Type-C Port for Maximum Versatility and Convenience The COWON CK11 features a Type-C USB port for foolproof connecting and greater convenience while maintaining a small port size. It uses a universal smartphone port to allow charging with modern smartphone charging cables.
Dual Mode and Single Mode for Listening Freedom With the COWON CK11, you can freely choose between Dual Mode for listening to music or Single Mode for listening to podcasts or audiobooks. You can use your earphones in a safer manner by using just one earphone and to avoid potentially-dangerous situations while driving or walking having external sounds completely blocked out.

* Remove both the left and right earphones from the charging cradle for use in Dual Mode,
    or only remove one earphone for use in Single mode.
* Putting one earphone in the charging cradle while in Dual mode does not disconnect the other earphone in use.
Call Audio in Both Channels, Dual Microphones &
Noise Reduction Technology
Call audio in both left and right channels. Because each earphone is equipped with its own dual microphone, calls can be made through either earphone when using Single Mode. The dual high-sensitivity microphones feature noise reduction and echo cancellation to deliver a clear, noise-free voice, and a voice prompt notifies you of received calls.
Single Mode In Single Mode, each earphone will output sound with both microphones enabled for use.
Dual Mode In Dual mode, the microphone of the earphone removed from the cradle first will be enabled. Removing L and R earphones from the cradle at the same time enables the "R" microphone.
Charging, and Storage All in One
Double Magnetic Charging Cradle
When storing the earphones, simply place the earphones near the cradle to magnetically install them in the correct orientation and begin recharging automatically. The double magnetic charging cradle uses magnets to prevent the unintentional loss of your earphones.

* Please charge the charging cradle periodically.
IPX5 Waterproof
Robust Water Resistance from Moisture and Sweat
The COWON CK11 earphones are suitable for not only outdoor activities with snow and rain but
sports activities involving sweat and moisture.
Luxurious metallic design The front part of the earphones including the button is made of metal,
and the luxurious platinum black color gives you a trendy yet sophisticated look.
Ergonomic design earphones and 4 sets of ear tips The ergonomic design allows a flawless fit to your ears for great comfort, and our exclusively designed premium ear tips in 4 different sizes, from ultra-small to large, gives you the best fit possible. With all of these features,
COWON CK11 can stay comfortable in your ears even in extended listening sessions.
* At the time of purchase, the M-size eartips are attached to the earphones.

Driver Unit

6mm, Dynamic Canal Type
Bluetooth Version V5.0

Bluetooth Profiles

Standby Time Up to 130 hours
Music-Playing Time Single Mode - About 11 hours / Dual Mode - About 11 hours
  * The playback time is based on the company's own test standards,
   thus it may differ from the actual playback time.
Charging Time Earphones - About 1.5 hours / Charging Cradle : About 3 hours
  * Number of available CK11 charges using charging cradle (2600 mAh):
   About 10 times (with fully charged charging cradle)
Earphones Battery 3.7V / 85mAh
Charging Cradle Battery

Input : USB-C, 5V 1A
Output : USB-A, 5V 1A
Capacity : 2600mAh
Operating Distance Up to 10m (Free space)
Weight Earphones - 5.4g x 2 / Charging Cradle - 90.3g

Package Components
Package Components
Award Winners