KO-STAR KTW-20 True Wireless Stereo Sports Bass Earphones User Manual

KO-STAR KTW-20 True Wireless Stereo Sports Bass Earphones User Manual

KTW-20
User Manual

Package box Included:

Earbuds X 1 set
Charging case X 1
Manual X 1
Micro USB Charging Cable X 1

1. Power on

Open the charging case and take the earbuds out, which will be powered on automatically. LED indicators of the earbuds will flash white four times. You will hear “power on”.

2. Power off

Put the earbuds into the charging case, which will be powered off automatically and be recharged. LED indicators of the earbuds will be in red.

3. Pairing and connection

When the earbuds is powered on, the earbuds will connect each other automatically. There is a prompt voice” di”. Turn on the bluetooth
function of the device and find the pairing ID “KTW-20”, click it to connect. There is a prompt voice “connected” from one of the earbud. (No pairing password is required (for some devices that require pairing password, please enter 0000 for password connection).When the bluetooth disconnected from the earbuds, you will hear “ disconnected, pairing”. In pairing mode, the earbuds will power off automatically, if it can’t be connected with bluetooth device in 5 minutes.

4. Calls

Answer a call: Click the MFB on Left/Right earbud
End a call: Click the MFB on Left/Right earbud
Reject a call: Press and hold the MFB on Left/Right earbud 2 seconds
Redial a call: Click the MFB on Left/Right earbud thrice continuously

5. Play/Pause music

Click the MFB on Left/Right earbud to play/pause music.

6. Next song

Click the MFB on Right earbud twice continuously.

7. Previous song

Click the MFB on Left earbud twice continuously.

8. Active Siri

Press and hold the MFB on Left/Right earbud for 3 seconds and to active siri function, there is a prompt tone “Dong”.

9. Low Battery Warning:

At power on condition, the LED indicators on the earbuds will flash red fast, and you will hear the warning tone “battery Low”.

10. Charging:

1. Earbuds charging
   Magnetic contact recharging, put the earbuds into charging case, which will be charged automatically, the LED indicators of the earbuds stay on red, and it will turn off when the earbuds were fully charged.
2. Charge the charging case
   Use adapter to charge the charging case, the LED indicators of the charging case stay on white. All indicator on charging case will be white, when it is fully charged.

Note: The bluetooth earbuds and charging case must be fully charged before first time to use.

11. Reset

Take out the earbuds from charging case, press and hold the MFB on Left and Right earbuds at the same time about 10 seconds. The LED indicators on earbuds will flash white twice, and reset successfully.

Specifications

Common Issues and Solutions

A. The phone could not find the earbuds.

Solutions:

1. Check if the earbuds are powered on; whether the earbuds is under pairing mode or not. (Pairing mode: one of the earbud flash red and white fast and another earbud flash white every 5s,)
2. Restart the earbuds and mobile phone
3. Clear your phone’s bluetooth pairing list and try again.

B. The earbuds cannot be connected to the phone. When the phone plays music, there is a sound in the right ear, but no sound in the left ear. There is something abnormal in the use of the earphone.

Solutions:

1. Put the earbuds in the charging case and take it out to restart, and try to connect the phone again.
2. Reset the earbuds.

C. The earbuds is always disconnected or noisy when connected to the phone.

Solutions:

1. The earphone power is insufficient. It needs to be charged as soon as possible.
2. There is a barrier between the phone and the earbuds or the distance beyond the signal reception distance. Please do not cover the earphone with your hands. Keep the earbuds and phone in the same direction.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

FCC ID: 2ALHZ20

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.

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