COTSUBU AG-TWS09R Bluetooth Earphone User Manual
- June 5, 2024
- COTSUBU
Table of Contents
COTSUBU AG-TWS09R Bluetooth Earphone
Package contents
Part name
Initial Setup
Remove both the left and right earphones from the charging case and peel off the insulation plastic strips which are initially attached to the metal contact at the back of the earphones.
Power/Charging
Charging the charging case:
Connect the accessory USB charging cable(C) connector to the USB port on the
charging case and connect the USB(A) connector to an electrical appliance or
adapter with the same shape of connector and the internal battery within the
charging case will begin to charge. While charging, the LED indicator light of
the charging case will flash/lights up in a different color depending on the
battery power level of the charging case as shown in the table below.
| Battery Remaining | LED indicator of the charging case |
|---|---|
| 0~10% | Yellow LED flashes slowly |
| 11~99% | Green LED flashes slowly |
| 100% | Green LED lights up |
Charging the earphones:
Insert the earphone units into the charging case and close the charging case,
the earphone units will start charging. Once the charging case is closed, the
LED indicator light of the charging case will light up in a different color
depending on the battery power level of the charging case as shown in the
table below.
| Battery Remaining | LED indicator of the charging case |
|---|---|
| 0~10% | Yellow LED lights up for 2 seconds |
| 11~100% | Green LED lights up for 2 seconds |
Turning on the earphones
After charging, open the charging case and the power of the earphones will
automatically switch ON. When the LED indicator of the earphones lights up red
for 3 seconds, the power is ON. (When the earphones are fully charged, the LED
indicator of the earphones lights up green for 1 second then turns into red
for 3 seconds) When the charging case is opened, the LED indicator light of
the charging case will light up in a different color depending on the battery
power level of the charging case as shown in the table below.
When the power is OFF, tap the touch control panel one time and the power will turn ON.
| Battery Remaining | LED indicator of the charging case |
|---|---|
| 0~10% | Yellow LED lights up for 10 seconds |
| 11 ~100% | Green LED lights up for 1 0 seconds |
Turning off the earphones
Touch and hold the touch control panel for about 3 seconds until two types of
beep sound emanate, and the power will switch OFF.
When the charging case is adequately charged, returning the earphones to the charging case and closing the charging case will automatically switch the power OFF and charging will begin. The LED indicator light of the charging case will light up in a different color depending on the power level of the battery as shown in the table below.
| Battery Remaining | LED indicator of the charging case |
|---|---|
| 0~10% | Yellow LED lights up for 2 seconds |
| 11 ~100% | Green LED lights up for 2 seconds |
Performing device pairing
To connect to your smartphone or other devices initially, it is necessary to
perform pairing. For devices which have already completed pairing, a
connection will automatically be established the next time the power is
switched ON.
The first time the earphones are used:
- Open the charging case, the LED indicator on the earphones will light up in red for 3 seconds and the power will automatically switch ON. Then, they will automatically switch to the pairing mode with the LED indicator on one of the earphones flashing between green and red.
- Switch the Bluetooth function on the smartphone or other devices ON and select (COTSUBU_ASMR] once it appears on the display.When [COTSUBU_ASMR Connected]* appears on the display of the device being connected, the pairing has been completed.
The content displayed differs depending on the user interface of the smartphones or other devices. To re-establish pairing or to perform pairing with a second or subsequent devices:
- Before performing pairing with a new device, please disconnect the device lo which il has already been paired or switch the Bluetooth function OFF on the device to which it has already been paired.
- Open the charging case, the LED indicator on the earphones will light up in red for 3 seconds and the power will automatically switch ON. Then, they will automatically switch to the pairing mode with the LED indicator on one of the earphones flashing between green and red.
- Switch the Bluetooth function on the smartphone or other devices ON and select [COTSUBU_ASMR] once it appears on the display. When [COTSUBU_ASMR Connected]· appears on the display of the device being connected, pairing has been completed.
Operation of Touch Control Panel
| L | R |
|---|
Music
| Playback| Tap 1 time
Pause| Tap 1 time
Next Track
Previous Track
| –
Touch and hold until beeo sound emanates
| Touch and hold until beep sound emanates
–
Raise Sound Volume| Tap 2times| –
Lower Sound Volume| –| Tap 2times
Incoming Calls
| Receive Call| Tap 1 time
End Call| Tap 1 time or return both sides to the charging case
Refuse Call| Tap 2times
Grvv, Siri/
le Assistant
| Initialize| Tap 2 times (Only while music playback is stopped)·
Depending on the device to which connected, this function may not be available.
Factory reset method
When pairing has not been successfully completed or unexpected error has
occurred, please perform the factory reset by the following procedures stated
below. Once the factory reset is completed, please attempt another pairing
operation.
- Insert the left and right earphones into an adequately charged charging case then touch and hold the touch control panel on both sides simultaneously for 10 or more seconds. When the LED indicator of both sides light up in green, release the fingers off from the touch control panel.
- After a certain amount of time, the earphones will automatically switch to the pairing mode with the smartphone or other devices with the LED indicator on one of the earphones flashes between green and red. In this situation, the factory reset has been completed.
- When the factory reset is completed, the earphones will be in the factory default state with all previous pairing information with the smartphone or other devices deleted. Please perform pairing again with the smartphone or other devices after removing the previous pairing record on the smartphone or other devices.
About the ear tips
When bass is dificult to hear and high range sOund jars the ear, there is a
possibility that the ear tip fit is not appropriate. In order to enjoy music
in accordance with the design of the earphone, it is important that the ear
tip fits properly and there is a means of sealing the ear canal. In order to
achieve the proper fit, please try the following methods:
- If there is any fitting discomfort with the default ear tips, please try with S or SS ear tips.
- Some users might have different ear canal sizes for the left and right ears, To achieve perfect fitting on both ears, please also try pairing ear tips with different sizes for left and right.
Maintenance
Gently remove any build-up from the mesh filter with the tip of a toothpick. Please take care to ensure that no foreign particles fall inside when doing so.
Points of Caution
- There is a risk of permanent hearing loss from extended use at excessive sound volumes.
- Please do not exceed 40 hours use per week at a sound volume of 80 dB(A) or 5 hours per week at a volume of 89 dB(A).
- To avoid electromagnetic interference, please refrain from use in places in which the use of electronic devices is prohibited.
- If you are using a pacemaker or other electronic medical devices, please consult your physician before using this product.
- This product contains small parts that may be hazardous to children, so please store in a place that is out of the reach of children.
- Please do not subject to strong shocks or apply excessive force. Damage from abnormal use is not covered by the warranty. To prevent damage, please store the earphones inside the case in an appropriate location.
- Causing damage to the circuits may result in fire or electrical shock, so please do not attempt to disassemble this product.
- Please keep this product away from water or other liquids that may cause shorts or other damage.
- Please do not attempt to repair this product yourself as unauthorized attempts at repair may void the product warranty.
- Never use earphones when operating a bicycle, automobile, motorcycle or other motor vehicle as this is a cause of traffic accidents and there is a risk of serious consequences. Even when not driving, please do not use at railroad crossings, traffic intersections and other environments where there is a danger in the inability to hear surrounding sounds.
- This product may be damaged if it is placed in locations where the environment is subject to excessive direct sunlight, humidity, dust and other contaminants.
- Always keep the charging terminals clean. Dirt and dust adhered to the metal charging points of the earphones or the pins of the charging case might cause short-circuit, burn, or fire.
Troubleshooting: When you think, “ls it broken?”
| Problem | Cause | Remedy | |
|---|---|---|---|
For safety of transportation from overseas, laws and
| | regulations do not allow the internal battery to be fully
| (Immediately after purchasing)
Battery charge is low
| charged at the time of shipping. For that reason. voltage may fall below the level required for operation at the time the customer opens the package. Fully
charging the battery before use may relieve this
| | inconvenience. Please refer to “Power/Charging· on
| | P.3 regarding the method for charging.
Earphones will not turn ON|
Earphone batteries are depleted
|
Please return the earphones into the charging case and close the case to charge them. (In case the charge in the charging case has run out, please charge the charging case first.) Please refer to “Power/
| | Charging” on P.3 regarding the method for charging.
|
The touch control panel has not been touched for
|
Please touch and hold the touch control panel until the power supply turns ON. Please refer to “Turning on the earphones· on P. 4 regarding the method for
| adequate 11me| turning the earphones ON.
|
An error has occurred
|
In some cases, performing a reset operation may !ix
| due to improper| the problem. Please refer to “Factory reset method”
| operation| on P.8 regarding the reset method.
Earphones will| |
not turn OFF| The touch control| Please touch and hold the touch control panel
until
| panel has not been| the power supply turns OFF. Please refer to·rurning
| touched for| off the earphones· on P.5 regarding the method for
| adequate time| turning the earphones OFF.
Problem| | Cause| Remedy
---|---|---|---
Earphones will not turn OFF
|
Charging case battery charge is low
| Normally, ii the earphones are returned to an adequately charged case and have the case closed, the earphones will automatically turn OFF. If the earphones do not turn OFF. the banery power level of the charging case might be too low. Please try again after charging the charging case.Please refer to “Pcmer/ Charging· on P.3 regarding the method for charging.
Using ear tips other than those included as accessories
| Normally, if the earphones are returned to an adequately charged case and have the case closed, the earphones will automatically turn OFF. HO’Never, if ear tips other than those included as accessories are used, there are cases in which they may interfere with the charging case and cause the earphones could not be turned OFF. Please
c eck to see whether the earphones turn OFF by using original ear tips
Earphones cannot be charged
| Metal contacts on earphone is not touching the pins
on the charging case
| After ensuring that the insulation plastic strips have been removed, please check that there is adequate contact between the metal contacts and the pins on the charging case.
Charging case battery charge is low
| Normally, if the earphones are returned to an adequately charged case and
have the case closed, the earphones will automatically turn OFF and start
being charged. II the charging does not start. the battery power level of the
charging case might be too low. Please try again after charging the charging
case. Please refer to “Power/Charging· on P.3 regarding the method for
charging.
The lid of the charging case is not properly closed| Charging will not start
if the lid is not properly closed after the earphones are returned to the
case. Please check if the lid of the case is properly closed.
Problem
| | Cause| Remedy
---|---|---|---
Earphones cannot be charged
|
Using ear tips other than an accessory
|
Normally, if the earphones are returned to an adequately charged case and have the case closed, the earphones will automatically turn OFF and start being charged. However, ii ear tips other than those included as accessories are used, there are cases in which they may interfere with the charging case and cause the earphones could not be turned OFF. Please check to see whether the earphones turn OFF by using original ear tips.
Touch sensor is
not functioning
|
The touch control panel section has become soiled or wet
|
In case the touch control panel section has become soiled or wet, the touch control panel may not funtion properly, and it may not be possible to operate the earphones. Please wipe the touch control panel section with a soft, dry cloth to remove stains or moisture.
While playing music, sound (connection) is interrupted
|
Unstable connection caused by interference from external factor
|
Bluetooth communicates using the 2.4GHz band. This band is used by other wireless standards such as Wi•Fi. etc., and so there is a possibility ol receiving interference. Moreover. this 2.4GHz band does not penetrate liquids. There is impact from humidity and rain, and the human body also contains liquid, so there are individual differences in connectivity.
Furthermore, it depends on the specifications of smartphones and other devices.
For that reason, switching OFF unused Wi-Ft /
Bluetooth semngs on surrounding devices, etc. is a countermeasure. While outside, there is a possibility that moving a smartphone from inside a bag to a breasl pocket, etc. or otherwise reducing the distance between devices may improve the connection status.
| Problem | Cause | Remedy |
|---|
Earphones cannot be detected I paired
| Earphones are not in the pairing mode| In some cases, performing a reset
operation may fix the problem. Please refer to “Factory reset method” on P.8.
Has automatically been connected to a previously connected device|
Please try performing the pairing operation again after having deleted the pairing information from a previously paired device.
In case it takes time to charge
|
The output of the USB adapter being used for charging is low
| In case you are using the USB port on a PC, etc., there are cases in which the output is low and it may take more time to charge than the publicly listed value. As such, please use a 5V/1A USB adapter when charging this product.
Sound only comes out from one side
| The left/right earphone pairing has been released|
In some cases, performing a reset operation may fix the problem. Please refer to “Factory reset method” on P.8
The battery of one side ol the earphones
has depleted
| Please return the earphone into the adequately charged charging case and close the case to charge it. Please refer to “Power/Charging· on P.3 regarding the method for charging.
Battery consumption is fast !or
one side of the earphones only
|
Based on lhe design specification, one side is the parent and the other side is the child, so the burden between left and right is different
| Under the specification for Bluetooth earphones, communication generally takes place with one side as the parent and the other as the child.
As such, the child only communicates with the parent, but the parent communicates with the smartphone or other devices and communicates with the child as well, and so there is a difference in the level of burden borne by the left and right earphone. As a result. a difference in the battery consumption between the left and right may occur.
Warranty and after service
The warranty for this product is valid for 1 year from the date of purchase. During the warranty period, we will repair the product based on the provisions below. The warranty is only valid in the country in which the product was purchased. Please contact the store you purchased the product from regarding questions pertaining to repairs.
- During the warranty period, we will repair the product free of charge if the product failed even though it was used in accordance with the instructions in the user’s manual and the point of caution sections.
- In the following cases, repairs to the product will be subject to a fee even during the warranty period:
- The necessary documentation noted in the warranty card is not complete.
- The product is identified to be modified, disassembled, or repaired by a third party or customer other than our company or our authorized organizations.
- The earphones were subjected to a strong impact or were allowed to get wet. Product failure resulting from an excessive use of force on the product.
- Failure of the product or damage caused as a result of fire, earthquake, storm or flood damage, lightning strike or other natural disaster.
- Repair of scratches on the surface of the housing or repair of the housing itself.
Guidance for Purchase Made from Amazon :
For purchases made from Amazon, kindły refer to the guides below should you
need any support or after-sales service.
- If you cannot find an answer to your questions in this user manual or the Q&A section on the Amazon product page, kindly post your question under the “Have a question?” section of the Amazon product page, and you will receive a response from us.
- If the product is not functioning well, kindly perform the troubleshooting remedies or a factory reset by following the guides stated in the user manual.
- If the problem remains unresolved after performing a factory reset and your product is within 30 days from the date of purchase, please make a product return request through Amazon “Returns & Orders after logging in to your account.
- If the problem remains unresolved after performing a factory reset and your product has exceeded 30 days from the date of purchase, kindly contact us through Amazon by clicking Sold by: AG Direct on the product page. Then, please send your inquiry after clicking “Ask a question.
- lf you are happy with the product, kindly leave a genuine review on Amazon, and your experience and excitement would reach millions of people worldwide.
Manufacturer final Inc.
There is a possibility of a change in the specification, so please scan this
QR code for the latest user’s manual.
Warranty Card
This card is necessary in the event that the warranty is utilized. Please store this card along with a receipt or other documentation showing the date of purchase in a safe place to be produced in the event that the warranty is utilized. Please refer to the manual for the provisions of the warranty.
FCC STATEMENT
Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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. The 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
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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