CK11 Pro - Audio player COWON - Free user manual and instructions

Product Type	Portable Audio Player
Model	CK11 Pro
Brand	Cowon
Dimensions	Approx. 100 x 50 x 10 mm
Weight	Approx. 95 g
Power Source	Built-in rechargeable Li-ion battery, 5V USB charging
Battery Life	Up to 10 hours of music playback
Display	2.4-inch color TFT LCD
Storage	8 GB internal memory, expandable via microSD card (up to 128 GB)
Audio Formats Supported	MP3, WMA, FLAC, APE, WAV, OGG
Playback Modes	Normal, Repeat, Shuffle, Intro
Additional Features	FM radio, voice recording, equalizer presets, playlist support
Connectivity	USB 2.0, Bluetooth 4.0 (audio streaming)
Audio Output	3.5 mm headphone jack
Maintenance	Clean with a soft, dry cloth. Avoid liquid and abrasive cleaners.
Safety Precautions	Do not expose to water, extreme heat, or drop. Keep away from magnetic fields.
Spare Parts & Repairability	Battery replacement possible by qualified technician. Screen repair available. Contact Cowon support.
General Information	Supports multiple languages, firmware upgradable via USB.

Frequently Asked Questions - CK11 Pro COWON

How do I transfer music to the CK11 Pro?

Connect the device to your computer via USB. It will appear as a removable drive. Drag and drop music files into the music folder. Supported formats include MP3, FLAC, and WAV.

Can I extend the storage with a memory card?

Yes, the CK11 Pro has a microSD card slot that supports cards up to 128 GB. Insert the card into the slot with the label facing up.

How do I reset the device if it freezes?

Press and hold the power button for about 10 seconds until the device restarts. If that fails, connect to a power source and try again.

What is the battery life and how do I charge it?

The battery lasts up to 10 hours of continuous playback. Charge via the included USB cable connected to a computer or a USB power adapter. Full charge takes about 2-3 hours.

Does the CK11 Pro support Bluetooth headphones?

Yes, it has Bluetooth 4.0 for wireless audio streaming. Go to Settings > Bluetooth to pair with your headphones.

How do I use the FM radio?

From the main menu, select FM Radio. You can auto-scan for stations or manually tune. Use the earphone cable as an antenna for better reception.

Why is my device not recognized by my computer?

Ensure the USB cable is fully inserted. Try a different USB port or restart your computer. If still unrecognized, go to Settings > USB Connection and select MSC (Mass Storage Class) mode.

Can I create playlists on the CK11 Pro?

Yes, you can create playlists using the device's Playlist function. Navigate to a song and select Add to Playlist. Or use software like Windows Media Player to transfer playlists.

How do I update the firmware?

Download the latest firmware from the Cowon website. Copy the firmware file to the root of the internal memory. Then go to Settings > Update Firmware and follow on-screen instructions.

What should I do if the screen is damaged?

Contact Cowon support or an authorized repair center. Screen replacement may be possible. Do not attempt to disassemble the device yourself.

USER MANUAL CK11 Pro COWON

* Actual package contents may differ from the above images.
* M-size eartips are attached to the earphones.

+ Before you start \_ Wearing

* For charging please remove the protective film from the earphone charging terminal.

Simple line drawing of a mechanical component with a dashed red circle and circular features (no text or symbols)

Simple line drawing of a mechanical component with a dashed circle labeled 'R' and two small circular features (no text or symbols beyond the label)

* Check the L and R marks on the earphones and put them in the correct ears.

* Wear them in a proper way by twisting and rotating the eartips to fit in your ears.

+ Before you start \_ Names of Parts and Functions

COWON CK11 Pro Charging Cradle

Multi-Function Button (L) Power / Call / Pairing / Play / Volume Down / Previous Track
Power / Call / Pairing / Play / Volume Up / Next Track

+ Before you start \_ Charging

Charging the Earphones

graph TD
    A["Top Left Component"] --> B["Control Panel"]
    C["Top Right Component"] --> B
    D["Bottom Left Component"] --> B
    E["Bottom Right Component"] --> B
    B --> F["Down Arrow 1"]
    B --> G["Down Arrow 2"]

Put the earphones in the charging cradle to start charging them automatically.

* Make sure that the earphone is properly positioned in the fixing groove of the charging cradle and check if the earphone LED is on.

Line drawing of a wireless earbuds with display screen (no text or symbols)

The earphone battery indicates 4 levels of charging.

+ Before you start \_ Charging

Charging the Charging Cradle

Pure electrical circuit lines without any symbols

Put the USB cable in the USB-C port and connect it to the power adapter to start charging.

Charging Cradle Battery Level 0% → 100%

Pure diagram of a digital display panel without any text or symbols

The level of battery charge in the charging cradle goes from 0 to 100%.
Charging : 0\~99% Charging Complete : 100%

Simple line drawing of a rectangular block resting on a circular base (no text or symbols)

You can charge CK11 Pro simply by placing the charging cradle on the wireless charging pad without connecting the cable to the charging cradle.

* Please charge the charging cradle periodically.
* For a more accurate battery reading, be sure to fully charge the cradle to 100%.

* Please place the charging cradle on the wireless charging pad and check if the earphone LED is on.
* The wireless charging pad is not included.

+ Before you start \_ Charging

Charging the Smartphone (Use the Cradle as a Power Bank)

Put the USB cable in the USB-A port and connect it to the smartphone to use the cradle as a power bank.

While charging the smartphone, the battery level in the charging cradle goes down from 100 to 0%.

* The cradle limits the output current to 1.5A. When the battery level is too low, it may not be possible to charge a smartphone that supports fast charging.

+ Using the Product \_ Auto Power On · Off

1 Auto power-on

Illustration of an open wireless earbuds with a blue arrow indicating rotation (no text or symbols)

Opening the lid of the charging cradle turns on the earphones automatically. (The blue LED flashes three times)

Auto power-off

Line drawing of an open wireless earbuds with a blue arrow indicating direction (no text or symbols)

Closing the lid of the charging cradle turns off the earphones automatically. (The red LED flashes three times)

Manual Power On / Off

* Press the button on the earphone for 3 seconds to turn it on when the power is off. (The blue LED flashes three times)
* Press the button on the earphone for 3 seconds to turn it off when the power is on. (The red LED flashes three times)

+ Using the Product \_ Pairing & Connection

12

Illustration of an open cylindrical device with two circular components and a blue arrow indicating direction (no text or symbols)

)

CK11 Pro Bluetooth

	Open the charging cradle lid Turn on Bluetooth Connect
Description	Opening the charging cradle lid turns on the earphones automatically, and they are ready to proceed to the pairing step.	Turn on Bluetooth on your smartphone or Bluetooth-capable device.	Select 'CK11 Pro Bluetooth' from the list of detected devices to pair and connect automatically.
Voice Prompts	"Power On"	"Pairing" "Connected"
LED	×3Blue	Blue Red	×1Blue

* The CK11 Pro supports: Dual mode (Stereo) to use the left and right earphones together and Single mode (Mono) to use them separately.

* 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.

* After the initial pairing, opening the charging cradle lid automatically connects the earphones to the most recently connected device.

+ Using the Product \_Listening to Music · Calling · Volume Control

	Left Right
×1	Play · Pause	Answering a call)	Play · Pause	Answering a call 1)
×2	Volume Down2)	Rejecting a call	Volume Up2)	Rejecting a call
×3	Voice Recognition3)		Voice Recognition 3)
2sec	Previous Track4)		Next Track4)
5sec	Power On · Off 5)		Power On · Off5)

1) 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. In Single Mode, each earphone will output sound with both microphones enabled for use.
2) Use the Volume Down function with the L earphone and Volume Up function with the R earphone. (In Single mode, only the functions on the earphone currently in use are available.)
3) Press and hold the multifunction button for 3 times to launch the voice recognition feature of your smartphone or tablet, (Android OS : Google Assistant / iOS : Siri / Window OS : Cortana - Except during calls)
4) Use the L earphone to go to the previous track and the R earphone to go to the next track. (In Single mode, only the functions on the earphone currently in use are available.)

* By using the CK11 Pro in Single Mode, you can alternate between charging the left and right earphones for extended use, (Audio books, Podcasts, etc.)
* Since Single Mode uses only one earphone, you can stay aware of environmental sounds and use the device more safely when walking or bicycling.
* Keep the product and a mobile phone within 1 meter when pairing.
* If passkey input is required, enter a password or a PIN No.'0000'.
* When the CK11 Pro is off, press and hold the multifunction button for 8 seconds to enter pairing mode.

• Voice Prompts

Status Voice Prompts
Power On	"Power On"
Power Off	[XHKS] "Power Off"
Pairing "Pairing"
Bluetooth Connection "Connected"
Incoming call "Incoming call" *
Disconnected "Disconnected"
Low Battery "Battery Low"

• Specification

Bluetooth Version V5.0
Bluetooth Profiles HSP / HFP / A2DP / AVRCP
Standby Time Up to 130 hours
Music-Playing Time	Single Mode : About 11 hoursDual Mode : About 11 hours
Charging Time	Earphones : About 1.5 hours *Charging Cradle :About 3 hours (Wired Charging)About 6.5 hours (Wireless Charging)
Earphone Battery 3.7V / 85mAh
Charging Cradle Battery	Input : USB-C, 5V~ 1AOutput : USB-A, 5V~ 1AWireless Charging : 5V~ 0.5ACapacity : 2600mAh
Operating Distance Up to 10m (Free space)
Weight	Earphones : 5.4g x 2Charging Cradle : 96g

* For iPhone, user ringtone will be applied.
* Number of available CK11 Pro charges using charging cradle (2600mAh) : About 10 times (with fully charged charging cradle)

+ Precautions \_ Reset to Dual Mode (When the L and R unist are not connecting to each other)

* Use the following method for troubleshooting purposes only, not during normal operation when the left and right earphones are not connected.
* Refer to page 'Pairing & Connection' when connecting the product to a smart device for the first time.
* If the L and R units only connect in single mode during normal dual-mode operation, reset to dual mode by following the instructions below.
* If it fails to reset, start again from Step ②.

1

Off

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-

Delete connected device & Turn off Bluetooth	Remove earphones & Press the button twice	Check purple LED Turn on Bluetooth Connection
Delete the [CK11 Pro Bluetooth] device registered on your smartphone or other Bluetooth device and turn off Bluetooth.	Remove the left and right earphones from the cradle and immediately press and release the buttons twice simultaneously.	The LEDs on the left and right earphones turn purple, and the earphones switch to the pairing mode.	Turn on Bluetooth on your smartphone or other Bluetooth device.	Select [CK11 Pro Bluetooth] from the detected devices to complete pairing and automatically connect.

DIGITAL PRIDE.

©WON