YOBYBO CARD20 User manual

CARD 20 TWS Bluetooth Earphones User Manual
Dear customers,
Welcome to use CARD 20 TWS Bluetooth Earphones!
Please read this user manual carefull before using, which can help ou better understanding.
一、
一、一、
一、 Product Introduction
Charging Box
1. Indicator, Turn on(open the cover)
2. Storage Box
3. T pe-C Charging Port
Earphones
1. Speaker, Indicator, Mutifunction Touch Botton, Microphone
When open/close the charging box, turn on/turn off automaticall .
When the phone is not connected, the earphones will automaticall turn off after 5 minutes.
During use, if ou need to turn off the earphone, first shut down the bluetooth connection of the
mobile phone, and then tap the earphone 7 times.
二、
二、二、
二、 Earphone Pairing
1. Open the charging box, the earphone will been automaticall pairing mode.
2. Turn on the device Blutooth settings to searching the connection
3. Find the name of the Bluetooth signal named “CARD20” and click Pair to connect the
Bluetooth earphone. At this time, the “CARD (R)” dialog box for requesting pairing will pop
up. Click Connect. The Bluetooth earphone will prompt “CONNECTED” and the pairing is
successful.
 When ou use again, once open the charging box the earphone will be connected
automaticall under Bluetooth keeps turning on.
 When using one earphone reference the above same mathod.

Notice：
If the two earphones cannot be paired with each other, follow the steps below.
Step Operating Indicator light
1
Delete the corresponding "CARD20"
Bluetooth connection in the phone
settings.
\
2 Put the earphones in the charging
case and close the lid.
The earphones lights up red after
closing the lid.
3
Take out the two earphones
separately, and tap them 5 times
within 40 seconds (you can also tap
them at the same time).
Each headset flashes red 3 times.
4 Put two earphones into the charging
case and close the lid.
The earphones lights up red after
closing the lid.
5 Remove the earphones and repeat
step 3. Red light on each headset for 3 seconds.
6 Put two earphones into the charging
case and close the lid.
The earphones lights up red after
closing the lid.
7
When the charging case is opened
again, the two earphones will
re-pair in about 30 seconds.
After pairing, one earphone flashes blue
light quickly, and the other earphone
flashes blue light every 5 seconds.
After completing the above operations, connect the phone again to use it normall .
Indicator ight
Pairing Mode
1. Earphone Indicator Light
 Open the charging box, the red and blue lights of the earphones will light up at the same
time, then the red light will light up, and then the blue light will flash quickl , indicating that
it is read to pair.
 After the two earphones are successfull paired with each other, the main earphone flashes
blue quickl and the sub earphone flashes blue slowl .
 After the earphone and mobile phone are successfull connected, the two earphones flash
blue light intermittentl .
 Put earphone into charging box and then close, displa s red light when charging, earphones
full charged when displa blue light, 25 seconds bule light turn off when ends.

2. Charging Box
 Charging box indicates the batter capacit according to the existing power.
 When charging the box, the indicator will displa the corresponding charging indicator, three
indicators will alwa s be on after full charging.
三、
三、三、
三、 Control Method
When using the earphones, touch the designated operation area lightl to complete the
operation.
“●”numbers indicates clicks times required when using
“╱”shows the earphone does not have this function
Use One earphone only
Operation functions 1
Function L R
Answering the
phone
● ● ● ●
Hand up ● ● ●●
Call Rejection ● ● ● ● ● ●
Pause ● ● ● ●
Play ● ● ● ●
Voice Assistant ● ● ● ● ● ●

Use a pair
Operation functions 2
Function L R
Answering the phone ● ● ● ●
Hand up ● ● ● ●
Call Rejection ● ● ● ● ● ●
Play/ Pause ● ● ╱
NEXT ╱ ● ●
PREV ╱ ● ● ●
Call voice assistant ● ● ● ╱
四、Precautions
 Tr to use the minimum volume ou need. Long-term high volume will cause permanent
damage to our hearing.
 Keep the devices and accessories out of reach from children. Chilren should use the device
under adult’s supervision.
 Do not immerse the device under water for a long time. Avoid using this product while
swimming, diving or showering.
 Do not use this product in humid, dust or magnetic fields, as it ma cause internal circuit
malfunction.
 Avoid storing the earphones under the environment below -15℃ or above 50℃.
 Avoid charging the earhones or chaging box below 0℃ environment.
 Do not leave the earhones for a long time of direct sunlight place like window sills and car
dashboards etc.
 Do not disassemble, modif or insert outside objects into the device, as there ma cause

damage to the device.
 The shell of charging box of this device is metal, and the edges are ver thin, do not use
force too much, do not put our fingers or other bod part into the hollow position of the
charging box, need to avoid an personal injur
Bluetooth Version 5.0
Working frequence 2.4-2.48GHz
Bluetooth distance About 10 Meters
Speaker frequence 20—20KHz
Single batter time ＞4 小时
＞4 Hours
Total batter time About 20 Hours
Charging batter capacit 300mAh
Earhones charging time About 1 Hour
Charging box charge time About 1.5 Hours
FCC ID: 2AVYG-CARD20
FCC Caution
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device ma not cause harmful interference, and (2) this device must accept
an interference received, including interference that ma cause undesired operation.
An Changes or modifications not expressl approved b the part responsible for compliance
could void the user's authorit to operate the equipment.
Note: This equipment has been tested and found to compl 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 frequenc energ and, if not installed and used in accordance with the
instructions, ma 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 b turning
the equipment off and on, the user is encouraged to tr to correct the interference b 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.