Sony WI-C400 Operating Instructions
![Sony WI-C400 manual cover](/images/efb59c6fa451a4bdef0d80c1/thumbs/thumb175x175.webp)
To pair your Sony WI-C400 with a Bluetooth device, press and hold the power button for about 7 seconds until the indicator starts flashing blue and red. This indicates the headset is in pairing mode. Enable Bluetooth on your device, search for "WI-C400", and select it to establish a connection.
If your WI-C400 headphones are not turning on, ensure they are charged. Connect them to a power source using the provided USB cable and let them charge for at least 30 minutes. If they still don't turn on, perform a reset by pressing and holding the power button for about 15 seconds.
To reset your Sony WI-C400 headphones, press and hold the power button and the volume down button simultaneously for about 7 seconds. The indicator will flash blue four times, indicating that the headphones have been reset to factory settings.
The Sony WI-C400 does not support multi-device connectivity. You can connect it to one device at a time. To switch devices, disconnect the current device and pair the headphones with another device.
The Sony WI-C400 headphones offer up to 20 hours of continuous playback on a full charge. Charging the headphones fully takes about 4.5 hours.
To improve sound quality, ensure the earbuds fit properly in your ears, as a good seal can enhance bass response. Additionally, check your device's audio settings and try using a high-quality audio source.
If your WI-C400 headphones are not charging, check the USB charging cable and the charger for any damage. Try using a different cable or charger. Ensure the charging port on the headphones is clean and free of debris.
Use the inline remote on the WI-C400 headphones to control playback: press the middle button to play/pause music, the + button to increase volume, and the - button to decrease volume. Press and hold the + or - button to skip forward or backward through tracks.
Yes, the Sony WI-C400 headphones have a built-in microphone for hands-free phone calls. You can answer or end calls using the middle button on the inline remote.
To check the remaining battery level of your WI-C400, press the power button once while the headphones are on. The indicator will flash red or blue, indicating the battery level: blue for a high charge, and red for a low charge.