Sound is interrupted
If there are frequent sound interruptions, following the steps below may solve the problem.
Follow the steps to check whether there is any abnormality with the sound output.
Insert the earphones into the charging case. Check that charging has started, and then remove from the charging case.
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Communication with the device may sometimes be unstable.
Changing the position or orientation of the device
If there is an obstructing object (our body, metal, wall, etc.) between the device and the earphones, use the device upon moving it to a position that allows for most stable communication, such as by inserting it into the rear pocket instead of the front pocket.
Also, orientation of the device may have a significant impact on communication.
Use the connected device in a position or orientation that allows for the most stable communication.
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Operation of the device may sometimes be unstable.
Reducing the number of apps running on the device
Multiple apps that are running concurrently on devices such as a smartphone might slow down the apps and cause sound interruptions.
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The battery level of the earphones might be running low.
Sound tends to be interrupted when the remaining battery level is low.
If there are frequent sound interruptions, charge the earphones.
Charging the earphones
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Open the charging case
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Rotate this unit to open the ear hook
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Insert the earphones into the charging case
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Charge the charging case and earphones
After the earphones are inserted into the charging case, the power of the earphones will automatically turn off.
5V TYPE
Indicators
Keep the charging terminal clean.
The indicator on the charging case starts flashing, indicating that charging has started.
The indicators on the charging case flash while charging the charging case. When charging is complete, all indicators go out.
The indicators on the earphones light up while charging the earphones. When charging is complete, the indicators go out.
When charging the earphones or charging case that have not been used for a long period of time, it might take some time for the indicators to light up. Wait for the indicators to light up.
Click here if the indicators do not light up or start flashing ＞＞
When charging is complete, the indicators on the earphones will turn off.
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Communication of the device may sometimes be unstable depending on the environment.
Using the earphones at a different location
Sound may be interrupted if the earphones are subject to radio interference at crowded areas or beside microwave ovens and other electronic equipment that emits radio waves.
Also, radio waves are transmitted and received both directly and via reflections from walls and other objects during Bluetooth® communication, so sound may also be interrupted even at places with good visibility and no obstructing objects.
This is a characteristic of Bluetooth® communication and is not a malfunction.
If there are frequent sound interruptions, use the earphones at a different location.
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Initializing the earphones and re-establishing the connection may help to solve the problem.
Follow the steps below to check whether there is any abnormality with the sound output.
Initializing
First of all, go to the Bluetooth settings of the device to be connected and delete the information of this unit that is registered on it.
Charge the charging case beforehand.
Remove the earphones once if they are inserted into the charging case.
Follow the steps below to initialize the settings of both L and R earphones.
Start by initializing the L earphone.
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Insert the L earphone into the charging case
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Remove the L earphone from the charging case, and place it back in again
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Touch and hold the touch sensor area on the L side of the earphones for about 10 seconds
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Tap the touch sensor area twice
After a few seconds, the indicator on the L earphone and charging case will light up.
Click here if the indicators do not light up or start flashing ＞＞
Touch sensor area
Release your finger after the L indicator flashes quickly.
If the indicator does not flash, start over from step 1.
The indicator will stop flashing after 5 seconds. Tap the touch sensor twice while it is flashing.
After initialization is complete, the L indicator will flash twice.
If initialization is not successful, start over from step 1.
Next, initialize the R earphone.
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Insert the R earphone into the charging case
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Remove the R earphone from the charging case, and place it back in again
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Touch and hold the touch sensor area on the R side of the earphones for about 10 seconds
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Tap the touch sensor area twice
After few seconds, the indicator on the charging case lights up.
Touch sensor area
Release your finger after the R indicator flashes quickly.
If the indicator does not flash, start over from step 4.
The indicator will stop flashing after 5 seconds. Tap the touch sensor twice while it is flashing.
After initialization is complete, the R indicator will flash twice.
If initialization is not successful, start over from step 1.
Finally, connect the L earphone with the R earphone.
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Remove both earphones at the same time
Be careful not to touch the touch sensor area when taking them out.
Touch sensor area
The indicator on both earphones lights up and the power turns on.
After a short while, the indicator on one earphone will flash quickly and repeatedly and the indicator on the other earphone will flash twice slowly and repeatedly. The earphones are now ready for device pairing.
After taking out the earphones, move the L and R earphones close to the device to pair with.
Connecting to a Device
Turn on the BLUETOOTH connection setting of the device and select “JVC HA-NP40T”
JVC HA-NP40T
The earphones are connected to the device if the indicators on both sides of the earphones are flashing every 5 seconds.
Apps and Volume Control on the Connected Device
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Open an app and play
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Adjust the volume
