User Manual
10
Troubleshooting 
Problem Solution
Power is not supplied. • Charge the product.
Unable to pair. • Visit our website for information on compatible models.
• Confirm that the Bluetooth device communicates using Ver. 2.1+EDR or higher.
• Place the product and the Bluetooth device within 1 m (3.3') of each other.
• Set the profiles for the Bluetooth device. For procedures on how to set profiles, 
refer to the Bluetooth device’s user manual.
• Remove the pairing information for the Bluetooth device then pair the product 
with this device again.
No sound is heard / Sound is 
faint.
• Turn on the power of the product and the Bluetooth device.
• Turn up the volume of the product and the Bluetooth device.
• If the Bluetooth device is set to the HFP/HSP connection, switch to the A2DP 
connection.
• Move away from obstacles between the product and the Bluetooth device, 
such as people, metal or walls, and place them closer together.
• Switch the output of the Bluetooth device to the Bluetooth connection.
Sound is distorted / Noise is 
heard / Sound cuts out.
• Turn down the volume of the product and the Bluetooth device.
• Keep this product away from devices that emit radio waves such as 
microwaves and wireless routers.
• Keep TVs, radios, and devices with built-in tuners away from the product. 
These devices can also be affected by the product.
• Turn off the equalizer settings of the Bluetooth device.
• Remove obstacles between the product and the Bluetooth device and place 
them closer together. 
Cannot hear the voice of the 
caller / Voice of the caller is too 
quiet.
• Turn on the power of the product and the Bluetooth device.
• Turn up the volume of the product and the Bluetooth device.
• If the Bluetooth device is set to the A2DP connection, switch to the HFP/HSP 
connection.
• Switch the output of the Bluetooth device to the Bluetooth connection.
The product cannot be charged. • Securely connect the included USB charging cable and charge the product.
• For details about how to operate your Bluetooth device, refer to the device’s user manual.
• If the problem still remains, reset the product. To reset the product, refer to “Reset function” (p. 9).










