Sony CKM-NWS770 User's Guide
![Sony CKM-NWS770 manual cover](/images/c4d924bd534b5013e3b06371/thumbs/thumb175x175.webp)
To pair the Sony CKM-NWS770 with your smartphone, ensure Bluetooth is enabled on your phone. Then, turn on the device and press the Bluetooth pairing button until the indicator starts flashing. Select the device from your phone's Bluetooth menu to complete pairing.
If your Sony CKM-NWS770 is not charging, check the charging cable and power source. Ensure the cable is properly connected. Try using a different charger or cable to rule out faults. If the issue persists, reset the device or contact Sony support.
To reset the Sony CKM-NWS770, press and hold the power button and the volume down button simultaneously for about 10 seconds until the device restarts. This will restore the factory settings.
To clean the Sony CKM-NWS770, gently wipe the exterior with a soft, dry cloth. Avoid using water or chemical cleaners. Regularly check for dust in the charging port and clean with a dry brush if necessary.
If there's no sound, ensure the volume is turned up and the device is not muted. Check the Bluetooth connection to ensure it's properly connected to the source device. Restart both devices if necessary.
To update the firmware, download the Sony Headphones Connect app on your smartphone. Connect the CKM-NWS770 to the app and follow the on-screen instructions to check for and install updates.
The Sony CKM-NWS770 is designed for everyday use. While it can be used during light exercise, it's not specifically designed for high-intensity workouts or exposure to excessive sweat, so proceed with caution.
The Sony CKM-NWS770 offers up to 20 hours of playback time on a full charge, depending on the volume level and usage conditions.
To improve Bluetooth connection stability, ensure there are no obstructions between the device and the source. Keep devices within the optimal range and minimize interference from other electronic devices.
If the CKM-NWS770 keeps disconnecting, try unpairing and then re-pairing the device. Ensure the firmware is up-to-date and keep your device within the Bluetooth range. Restarting both devices may also help.