How to understand the LED Light indicators on Technics and Panasonic earphones.

LED indicators on the earbuds and headphones provide you with operational, charging and troubleshooting information.


Indicators do vary by model. The following list includes operational functions by model.
If your model is not listed please refer to the operating manual for specific procedure. Click here to visit our operating manual lookup

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Models EAH-AZ40 and EAH-AZ60


Earbuds LED Color Indicators
LED Colour Blinking Frequency Indicated Status
Blue and Red Blinking in an alternating pattern Bluetooth® pairing (registration). standby
Blue Blinking Slowly Waiting for Bluetooth® connection.
Blue Blinking twice every 5 seconds When connected with Bluetooth® (playing back music/in a call, etc.)
Blue Blinking A call is being received.
Red Blinking Low battery

Charging Cradle

When you open the charging cradle lid, the charging cradle LED light or blink for about 4 seconds to indicate the charge remaining in the battery.

  • If the charging cradle LEDs do not light even when you open the charging cradle lid, there is no charge in the battery. Charge the unit.

When charging with the USB charging cord with the earphones stored in the charging cradle
LED Colour Lid Status Blinking Frequency Indicated Status
Cyan (yellow) Open Blinking Charging the earphones
Lights off Close or open Off Earphones and charging cradle’s batteries are full.
Green Close or open Solid Charging the charging cradle, there is plenty of charge in the battery.
Yellow Close or open Solid Charging the charging cradle, the charge in the battery is medium.
Red Close or open Solid Charging the charging cradle, the charge in the battery is running low.

When charging with the USB charging cord with the earphones outside the charging cradle
LED Colour Blinking Frequency Indicated Status
Lights off Off Charging cradle’s battery is full.
Green Solid Charging the charging cradle, there is plenty of charge in the battery.
Yellow Solid Charging the charging cradle, the charge in the battery is medium.
Red Solid Charging the charging cradle, the charge in the battery is running low.

When charging with the earphones stored in the charging cradle (USB charging cord not connected, Lid Open)
LED Colour Blinking Frequency Indicated Status
Lights off Off Battery fully charged.
Cyan (Yellow) Blinking Charging the earphones.
Green Solid Charging the charging cradle, there is plenty of charge in the battery.
Yellow Solid Charging the charging cradle, the charge in the battery is medium.
Red Solid Charging the charging cradle, the charge in the battery is running low.

Note

  • The charging cradle LED lights or blinks for about 4 seconds when open the charging cradle lid, and then goes out.


Troubleshooting LED indicators


The charging cradle LED does not light or blink even when you open the charging cradle lid.

  • There is no charge in the battery. Use the USB charging cord (supplied) to charge.
  • Take the earphones out of the charging cradle, and after unplugging the USB charging cord, close the lid and leave it for 3 minutes. Then open the lid of the charging cradle and confirm that the power turns on.

The charging cradle LED (red) blinks rapidly.

  • The unit are not charged correctly. Unplug the USB charging cord and plug it in again. If it still blinks red again, refer servicing to qualified service personnel.

The charging cradle LED (cyan) blinks rapidly.

  • The earphones are not inserted correctly. Please reinsert the earphones correctly.
  • There is dust or droplets of water on the terminals of the earphones and charging cradle. Remove dust and water droplets.

The LED does not flash cyan even after putting the earphones into the charging cradle.

  • There is no charge remaining in the charging cradle battery. First charge the charging cradle.
  • If the charging cradle LED (cyan) does not blink with the earphones in the charging cradle when the lid of the charging cradle is opened, then the earphones are fully charged.

The Bluetooth connection is established, but the left earbud's LED continues to blink in blue even after connecting

When connected to a device, both earbud LEDs blink blue twice every 5 seconds. This is normal. Please place the earbuds back into their charging case, wait about 10 seconds, and check the earbuds LED again after takin them out.


The LED on one earbud is turned on, blue, and is staying on (not blinking) when removing it from the charging case

If the earbuds are paired to a device, once removed from the charging case the LEDs on the earbuds should blink twice every 5 seconds. If not, contact customer service for further analysis.


The LED on one earbud is not working.

This may indicate a charging problem. Troubleshoot as follows.

  1. Put both earbuds into the charging case.
  2. Make sure that the earbuds are seated properly in the charging case. Note: When placing the earbuds in the charging case “Cyan” LED blinks for 5 seconds, which means the earbuds are now charging.
  3. Close the case, make sure the case is fully charged.
  4. Wait 2-3 hours then open the case and check if the Blue LED on the earbud is displayed.

The LED turns red when placing them in the charging case. If I remove the earbuds from the charging case, the LED on one earbud does not turn on at all.

  • If the LED is red or there is no LED on any of the earbuds, it means it requires charging. Place the earbuds in the charging cradle for 3-4 hours to fully charge.

The LEDs on the earbuds blink while in use. Is it possible to turn this blinking off completely?

  • Yes, you can turn off the blinking. Open the “Technics Audio Connect” app – Select Settings, then select Disable the “Bluetooth blinking LED”.

I removed fully charged earbuds from the charging case and put them back into the case within 5 minutes. The LEDs turn on red for a few minutes and then goes away.

  • This is normal. The charging case is checking the status of the earbuds. Once an LED light goes away, the charging case has confirmed that the earbud is fully charged.

Model EAH-AZ70


Earbuds LED Color Indicators
LED Colour Blinking Frequency Indicated Status
Blue and Red Blinking in an alternating pattern Bluetooth® pairing (registration). standby
Blue Blinking Slowly Waiting for Bluetooth® connection.
Blue Blinking twice every 5 seconds When connected with Bluetooth® (playing back music/in a call, etc.)
Blue Blinking A call is being received.
Red Blinking Low battery

When using the USB charging cord to charge the earphones and the charging cradle.
Usage Status Earphone LED lighting blinking patterns
Charging for the first time (After purchase) The earphones LEDs light red about 5 seconds after you put the earphones into the charging cradle.
Charging anytime after the first time (When there is still battery charge) When you put the earphones in the charging cradle, the earbuds LEDs light red about 2 seconds, then turn off. After about 5 seconds, the earbuds LEDs light red again. If the earbuds LEDs do not light red again, the Earbuds are fully charged.
When the batteries are depleted (there is no charge left at all) The earphones LEDs light red about 5 seconds after you put the earphones into the charging cradle.
Battery Fully charged 3 white LEDs lights for 4 seconds when the lid is opened or closed.
Battery Not charged The charging cradle shows white blinking LEDs depending on the amount of the battery charge left.


Troubleshooting LED indicators


The charging cradle LED does not light or blink even when you open the charging cradle lid.

  • There is no charge in the battery. Use the USB charging cord (supplied) to charge.
  • Take the earphones out of the charging cradle, and after unplugging the USB charging cord, close the lid and leave it for 3 minutes. Then open the lid of the charging cradle and confirm that the power turns on.

The charging cradle LED (red) blinks rapidly.

  • The unit are not charged correctly. Unplug the USB charging cord and plug it in again. If it still blinks red again, refer servicing to qualified service personnel.

The charging cradle LED (cyan) blinks rapidly.

  • The earphones are not inserted correctly. Please reinsert the earphones correctly.
  • There is dust or droplets of water on the terminals of the earphones and charging cradle. Remove dust and water droplets.

The LED does not flash cyan even after putting the earphones into the charging cradle.

  • There is no charge remaining in the charging cradle battery. First charge the charging cradle.
  • If the charging cradle LED (cyan) does not blink with the earphones in the charging cradle when the lid of the charging cradle is opened, then the earphones are fully charged.

The Bluetooth connection is established, but the left earbud's LED continues to blink in blue even after connecting

When connected to a device, both earbud LEDs blink blue twice every 5 seconds. This is normal. Please place the earbuds back into their charging case, wait about 10 seconds, and check the earbuds LED again after takin them out.


The LED on one earbud is turned on, blue, and is staying on (not blinking) when removing it from the charging case

If the earbuds are paired to a device, once removed from the charging case the LEDs on the earbuds should blink twice every 5 seconds. If not, contact customer service for further analysis.


The LED on one earbud is not working.

This may indicate a charging problem. Refer to the Step by Step troubleshooting guide Troubleshooting guide.

The LED turns red when placing them in the charging case. If I remove the earbuds from the charging case, the LED on one earbud does not turn on at all.

  • If the LED is red or there is no LED on any of the earbuds, it means it requires charging. Place the earbuds in the charging cradle for 3-4 hours to fully charge.

The LEDs on the earbuds blink while in use. Is it possible to turn this blinking off completely?

  • Yes, you can turn off the blinking. Open the “Technics Audio Connect” app – Select Settings, then select Disable the “Bluetooth blinking LED”.

I removed fully charged earbuds from the charging case and put them back into the case within 5 minutes. The LEDs turn on red for a few minutes and then goes away.

  • This is normal. The charging case is checking the status of the earbuds. Once an LED light goes away, the charging case has confirmed that the earbud is fully charged.

Models RZ-S300 and RZS500


Earbuds LED Color Indicators
LED Colour Blinking Frequency Indicated Status
Blue and Red Blinking in an alternating pattern Bluetooth® pairing (registration). standby
Blue Blinking Slowly Waiting for Bluetooth® connection.
Blue Blinking twice every 5 seconds When connected with Bluetooth® (playing back music/in a call, etc.)
Blue Blinking A call is being received.
Red Blinking Low battery

When using the USB charging cord to charge the earphones and the charging cradle.
Usage Status Earphone LED lighting blinking patterns
Charging for the first time (After purchase) The earphones LEDs light red about 5 seconds after you put the earphones into the charging cradle.
Charging anytime after the first time (When there is still battery charge) When you put the earphones in the charging cradle, the earbuds LEDs light red about 2 seconds, then turn off. After about 5 seconds, the earbuds LEDs light red again. If the earbuds LEDs do not light red again, the Earbuds are fully charged.
When the batteries are depleted (there is no charge left at all) The earphones LEDs light red about 5 seconds after you put the earphones into the charging cradle.
Battery Fully charged 3 white LEDs lights for 4 seconds when the lid is opened or closed.
Battery Not charged The charging cradle shows white blinking LEDs depending on the amount of the battery charge left.


Troubleshooting LED indicators


The charging cradle LED does not light or blink even when you open the charging cradle lid.

  • There is no charge in the battery. Use the USB charging cord (supplied) to charge.
  • Take the earphones out of the charging cradle, and after unplugging the USB charging cord, close the lid and leave it for 3 minutes. Then open the lid of the charging cradle and confirm that the power turns on.

The charging cradle LED (red) blinks rapidly.

  • The unit are not charged correctly. Unplug the USB charging cord and plug it in again. If it still blinks red again, refer servicing to qualified service personnel.

The charging cradle LED (cyan) blinks rapidly.

  • The earphones are not inserted correctly. Please reinsert the earphones correctly.
  • There is dust or droplets of water on the terminals of the earphones and charging cradle. Remove dust and water droplets.

The LED does not flash cyan even after putting the earphones into the charging cradle.

  • There is no charge remaining in the charging cradle battery. First charge the charging cradle.
  • If the charging cradle LED (cyan) does not blink with the earphones in the charging cradle when the lid of the charging cradle is opened, then the earphones are fully charged.

The Bluetooth connection is established, but the left earbud's LED continues to blink in blue even after connecting

When connected to a device, both earbud LEDs blink blue twice every 5 seconds. This is normal. Please place the earbuds back into their charging case, wait about 10 seconds, and check the earbuds LED again after takin them out.


The LED on one earbud is turned on, blue, and is staying on (not blinking) when removing it from the charging case

If the earbuds are paired to a device, once removed from the charging case the LEDs on the earbuds should blink twice every 5 seconds. If not, contact customer service for further analysis.


The LED on one earbud is not working.

This may indicate a charging problem. Refer to the Step by Step troubleshooting guide Troubleshooting guide.

The LED turns red when placing them in the charging case. If I remove the earbuds from the charging case, the LED on one earbud does not turn on at all.

  • If the LED is red or there is no LED on any of the earbuds, it means it requires charging. Place the earbuds in the charging cradle for 3-4 hours to fully charge.

The LEDs on the earbuds blink while in use. Is it possible to turn this blinking off completely?

  • Yes, you can turn off the blinking. Open the “Technics Audio Connect” app – Select Settings, then select Disable the “Bluetooth blinking LED”.

I removed fully charged earbuds from the charging case and put them back into the case within 5 minutes. The LEDs turn on red for a few minutes and then goes away.

  • This is normal. The charging case is checking the status of the earbuds. Once an LED light goes away, the charging case has confirmed that the earbud is fully charged.
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