CK20 ANC - Headphones COWON - Free user manual and instructions
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USER MANUAL CK20 ANC COWON
| COWON CK20ANC | ||
| COWON CK20 ANC Wireless Charging Cradle Quick Guide | ||
| XS (2EA) S (2EA) M (2EA) L (2EA) | ||
| Ear Tips USB Type-C Cable | ||
* Actual package contents may vary from the above images.
* M-size eartips are pre-installed to the earphones.
+ Before you start \_ Wearing

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Simple line drawing of a mechanical component with a circular base and a red arrow pointing to a labeled part (no text or symbols)
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Diagram showing a mechanical or electrical component with labeled parts and a red arrow indicating direction.* For charging, please remove the protective film from the earphone charging terminal.

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Simple line drawing of a mechanical component with a circular feature labeled 'L' and a dashed circle, no text or symbols present.
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Simple line drawing of a mechanical component with a circular base and a dashed circle labeled 'R' (no text or symbols beyond the label)* Position them properly on twisting and rotating the them in the correct ears.







* Position them properly by twisting and rotating the eartips to fit in your ears.
+ Before you start \_ Names of Parts and Functions
COWON CK20 ANC Charging Cradle

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LED Multi-Function Button(L) Power / Call / Pairing / Play / Volume Down / Previous Track / Turn On · Off the ANC function Multi-Function Button(R) Power / Call / Pairing / Play / Volume Up / Next Track / Turn On · Off the ANC function Charging Port Microphone (L) Microphone (R)
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Charging Cradle Battery Level Earphone Charging Status LED USB Type-A Port (Output) USB Type-C Port (Input)+ Before you start \_ Charging
Charging the Earphones

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Diagram of a dual-lens device with blue directional arrows indicating flow or movement (no text or symbols)Place the earphones in the cradle to start charging them automatically.

Charging (Red)

Charging Completed (Blue)
LEDLED
* Make sure that the earphone is properly positioned in the fixing groove of the charging cradle and check if the earphone LED is on.
COWON CK20 ANC
+ Before you start \_ Charging
Charging the Cradle
Wired Charging

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Simple diagram of a vertical pipe with a blue arrow indicating upward motion, no text or symbols present.Insert the USB cable in the USB-C port and connect it to the power adapter to start charging.
Charging Cradle Battery Level 0% → 100%

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Simple line drawing of a digital display with no text or symbolsThe level of battery charge in the charging cradle goes from 0 to 100%. Charging : 0\~99% Charging Completed : 100%
* Please charge the cradle periodically.
Wireless Charging

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Simple line drawing of a rectangular block on a circular base (no text or symbols)You can charge CK20 ANC simply by placing the cradle on the wireless charging pad without connecting the cable to the cradle.
* Please place the 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)

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Diagram showing a USB device connected to a smartphone with battery, indicating data transfer or connection.Insert the USB cable in the USB-A port and connect it to the smartphone to use the cradle as a power bank.
Charging Cradle Battery Level 100% → 0%

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Simple line drawing of a digital thermometer with no text or symbolsWhile charging the smartphone, the battery level in the 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
Auto power-on Auto power-off

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Line drawing of a wireless earbuds box with a blue arrow indicating rotation (no text or symbols)Opening the lid of the cradle turns on the earphones automatically.

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Line drawing of an open wireless earbuds with a blue arrow indicating direction (no text or symbols)Closing the lid of the cradle turns off the earphones automatically.
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





CK20 ANC
| Open the cradle lid Turn on Bluetooth Connect | |||
| Description | Opening the 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 'CK20 ANC' from the list of detected devices to pair and connect automatically. |
| Voice Prompts | "Power On" | "Pairing" "Connected" | |
| LED | ×3Blue | Blue Red | ×1Blue |
* The CK20 ANC supports: Dual mode (Stereo) to use the left and right earphones together and Single mode (Mono) to use them separately.
* By using the CK20 ANC 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 riding bicycles.
* 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 cradle lid automatically connects the earphones to the most recently connected device.
* 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'.
+ Using the Product \_Listening to Music · Making a Call · Volume Control
Left Right | ![]() | |||||
×1 | ![]() | (KKG3) | ![]() | ![]() | ![]() | ![]() |
×2 | )2)![]() | ![]() | ||||
×3 | 3)3)[BTAX] | ![]() | ||||
×3 | ![]() | |||||
| [WS3T].sec | [w8xC] | ![]() | ![]() | ![]() | ![]() | |
| (Transparency Mode) | ||||||
3~6sec | Power On 3sec / Power Off 6sec | |||||
- Voice Prompts
| Status Voice Prompts | |
| Power On "Power On" | |
| Power Off "Power Off" | |
| Pairing "Pairing" | |
| Bluetooth Connection "Connected" | |
| Incoming call "Incoming call" * | |
| Disconnected "Disconnected" | |
| ANC ON "ANC ON" | |
| Transparency Mode | ![]() |
| ANC OFF "ANC OFF" | |
| Battery Low "Battery Low" |
* For iPhone, user ringtone will be applied.
- Specification
| Bluetooth Version V5.0 | |
| Bluetooth Profiles HSP / HFP / A2DP / AVRCP | |
| Standby Time Up to 130 hours | |
| Music-Playing Time | Dual Mode : About 7 hours(ANC Mode : About 6 hours)Single Mode : About 6 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 / 50mAh |
| Charging CradleBettery | Input : USB-C, 5V ·s 1AOutput : USB-A, 5V ·s 1AWireless Charging : 5V ·s 0.5ACapacity : 2600mAh |
| Operating Distance | Up to 10m (Free space) |
| Weight | Earphones : 6.3g x 2Charging Cradle : 95g |
* Number of available CK20 ANC charges using cradle (2600mAh)
: About 17 times (with fully charged cradle)
+ Precautions \_ Resetting to Dual Mode (When the L and R units 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 'Pairing & Connection' page 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.
12

Off

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Press twice Press twice-

-

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CK20 ANC| Delete connected device & Turn off Bluetooth | Remove earphones & Press the button twice | Check for purple LED Turn on Bluetooth Connection | ||
| Delete the [CK20 ANC] device connected to 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 [CK20 ANC] from the detected devices to complete pairing and connect automatically. |
COWON CK20 ANC
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©WON
Left Right
×1




×2

×3
×3




3~6sec
Power On 3sec / Power Off 6sec