Please check how the earphones fit, because it's necessary to fit earphones appropriately because it's the elements for best Sound Quality. Then, you can customize the sound using the Technics Audio Connect app, such as 4 Preset Sound mode and Equalizer setting.

At first, please check the fit which is appropriate for your ears. And some of Android device cannot change volume. Please try to change by earphone volume by touch sensor. And also, if you're an iPhone user, please check "Reduce Loud Sounds" setting at "Headphone Safety" in "Setting" menu.

2. Some Android devices cannot operate volume control. Please change from earbuds volume by touch sensor.

Please chose and set best earpiece for you from 7 types and check the direction of "Technics" Logo and fit earphones firmly. And then, make sure the surface of earphones should not face down.
Wear the earphones correctly to achieve good noise cancelling and acoustics.

Please check the fit which is appropriate for your ears and then, you can optimize the Noise Cancelling function by operating the "Optimizing noise cancellation" in the Technics Audio Connect app.

1. Fit the earphones firmly as per the illustration.

2. Tap the "Optimizing noise cancellation" menu at "Settings" in the Technics Audio Connect app and adjust it.

• Make sure that the earphones and the Bluetooth® device are connected correctly.
• Check if music is playing on the Bluetooth® device.
• Make sure that the earphones are turned on and the volume is not set too low.
• Pair and connect the Bluetooth® device and the earphones again.
• Check if the Bluetooth® compatible device supports "A2DP" profile.
  If the Bluetooth® compatible device supports the "A2DP" and "AVRCP" Bluetooth® profiles, music can be played back with remote control operations on the unit.
  A2DP (Advanced Audio Distribution Profile) : Transmits audio to the unit.
  AVRCP (Audio/Video Remote Control Profile) : Allows remote control of the device using the unit.

Low volume.

• Also raise the volume on the Bluetooth® device, not just on the earphones.
• Make sure there is no earwax, foreign matter, etc., attached to the earpieces of the earphones.
  Remove the earpieces from the main unit (earphones) and refer to below instruction to clean them.

Earphones / Earpieces cleaning.

• Regular cleaning is necessary to continue using the earpieces comfortably.
  Earwax and other foreign matter attached to the holes of the earpieces can change the acoustic characteristics, such as making the sound smaller, and also be the cause of malfunctions.

Regular maintenance is necessary in order to continue using the product comfortably.

If foreign substances (such as earwax) build up in the earbuds, there may be no sound or the volume may seem lower than usual.
Even if the earbuds looks clean, it is recommended that you care for the earbuds regularly to prevent those issues.

(A) How to care earphones without sponge inside the earpiece

1. Remove the silicon earpiece from the earphones as shown in the picture.

2. Clean the earpieces using the cotton swab to remove any foreign material. They can be washed using a mild neutral detergent. Rinse and dry before use.

3. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

(B) How to care earphones with sponge inside the earpiece

1. Remove the silicon earpiece from the earphones as shown in the picture.

2. Clean the earpieces using the cotton swab to remove any foreign material.

▼ If the earpieces are very dirty

3. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

► If the earpieces are very dirty

1. Wash both earpieces using a mild neutral detergent.
Gently squeeze earpieces by fingers to remove dirt from sponge.

*DO NOT remove sponge from the earpiece.

2. Rinse earpieces using clean water.

3. Put washed earpieces on a dry cloth and gently squeeze the sponge to remove excess water and let it dry before use.

4. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

• Best effort mode controls bitrate automatically depending on the network condition, ensuring stable connection.
  * Switch to best effort from the "LDAC playback sound quality" setting of the LDAC playback device.
  * Some devices may not be able to change the setting.

Regular maintenance is necessary in order to continue using the product comfortably.

If foreign substances (such as earwax) build up in the earbuds, there may be no sound or the volume may seem lower than usual.
Even if the earbuds looks clean, it is recommended that you care for the earbuds regularly to prevent those issues.

(A) How to care earphones without sponge inside the earpiece

1. Remove the silicon earpiece from the earphones as shown in the picture.

2. Clean the earpieces using the cotton swab to remove any foreign material. They can be washed using a mild neutral detergent. Rinse and dry before use.

3. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

(B) How to care earphones with sponge inside the earpiece

1. Remove the silicon earpiece from the earphones as shown in the picture.

2. Clean the earpieces using the cotton swab to remove any foreign material.

▼ If the earpieces are very dirty

3. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

► If the earpieces are very dirty

1. Wash both earpieces using a mild neutral detergent.
Gently squeeze earpieces by fingers to remove dirt from sponge.

*DO NOT remove sponge from the earpiece.

2. Rinse earpieces using clean water.

3. Put washed earpieces on a dry cloth and gently squeeze the sponge to remove excess water and let it dry before use.

4. After cleaning both the earpiece and the main unit mesh, put the earpiece on until the recessed inner core is fully seated on the post.

What the Technics Audio Connect app does to suppress sound interruptions and delays is changing the buffer size. Longer buffers size can suppress the interruption and shorter buffers can reduce delay.

• Multi-point allows the earphones to connect up to 3 Bluetooth® devices at the same time.

• Also raise the volume on the BluetoothR device, not just on the earphones.

When the earphones are paired with a smartphone and a PC and a call is being made on the smartphone, if a notification is sent to the PC, the sound of the call may be interrupted. In that case, please select Headphones(Stereo) instead of Headset(Hands-Free) in the Sound profile setting of the PC as shown below.

Note : (1) The below setting depends on the OS version of your PC and this changing will not effective for some smartphone devices.
(2) After you changed to "Headphones(Stereo)", if you want to make a call on your PC, you need to change to the Headset(Hands-Free) setting.

<In case of Windows10>

After placing once into the charging cradle and waiting for about 15 seconds, take them out again.