The sound quality of the Neckband Pro is tuned based on extensive user experiences and is at a relatively high industry standard. However, individual preferences for sound quality may vary. We recommend downloading the Nothing X App and accessing the Equalizer page to choose preset sound effects. Additionally, you can customise the sound according to your personal preferences in the Custom settings.

1) If the earbuds were playing sound from the meeting, the issue might be due to the settings of the web conferencing program. When selecting the Necklace Pro channel in the web conferencing program, it periodically forces the sound route to switch to the earbuds. As a result, when you are connected to a meeting on Device A and receive a call on Device B, the earbuds continue to output sound from the meeting and cannot switch to the mobile phone call.
Solution: Change the audio channel in the web conferencing app to the system default.
2) If there was no sound playing from the web conferencing application on the computer through the earbuds, reset the earbuds to factory settings and then reconnect them, or try restarting the mobile device and attempting again.

1. Open the Settings app on your phone, go to the Bluetooth interface, check if the earphones are listed under the connected devices. If they are on the connected devices list, click on the i button next to the earphones and select Forget this device.
2. Re-enter the Nothing X app and initiate the pairing process again.

The device search is an interactive process between the phone and the earphones, so there may be Bluetooth logic issues on the phone side, causing the earphones to stay undetected for some time. This is not a problem with the earphones. Try turning the Bluetooth on your phone on and off, or restarting the phone and trying the search again.

This is normal. When connected to an iOS device, the Bluetooth connection through the app uses the BLE (Bluetooth Low Energy) protocol. The earphones and the app establish a connection via low-power Bluetooth. During a call, the system prioritises processing power and communication bandwidth for the call as priority. Consequently, the communication over low-power Bluetooth is halted.

Due to compatibility issues with the Bluetooth Fast Pair and dual connection features of some device systems, there may be occasional delays in sound output when you switch music channels or try to connect your device. We recommend you directly experience the connection between the earphones and the device.

Please confirm you're pressing the Smart Dial properly. Double press will take you to the next track; a triple press to the previous one. If you're pressing properly and still unable to control music playback, try using a different music app to check if the function works.

When you press, your commands are transmitted through the device to the app for processing. However, as certain apps don't support these switching commands, they may not respond to the earphones' control commands, resulting in ineffective control operations. This issue occurs in various Bluetooth earphones and does not indicate a problem with the Necklace Pro.

1. Power consumption varies depending on usage scenarios, with voice calls requiring most power.
2. During actual use, factors such as high volume, the bitrate of the audio being played and environmental interference can affect battery life. Try lowering the volume and use AAC mode to enhance your battery life. See instructions below.
3. Upgrade your app to the latest version through the Google/iOS application store, find Settings and press Firmware Update in the app.
4. If the above suggestions do not resolve the issue, press the button on the charging case for 10 seconds to perform a factory reset. Then try again.

Instructions for setting AAC mode:
1) After connecting the earphones to your phone via Bluetooth, select the connected CMF Buds in Bluetooth settings to access detailed Bluetooth device settings. Look for Media audio, select HD (AAC) or directly enable AAC.
2) After connecting the earphones to your phone via Bluetooth, enter Developer mode (go to Settings > Additional settings > Developer options), find Bluetooth Audio Codec and select AAC.
Due to differences in phone brands and models, the exact setting paths may vary. Please refer to the actual settings.

Neckband Pro supports various noise-cancelling effects, with a maximum reduction of up to 50dB. The noise cancellation bandwidth reaches up to 2000Hz. Download the Nothing X App and navigate to the Noise Control settings to check the ANC options. This setting provides multiple effect options such as High/MID/LOW. We also advise you to ensure the ear tips are properly fitted, as improper fit may result in poor or ineffective noise cancellation. The earphones come with different-sized ear tips, and we recommend trying different ones for optimal performance.

1. If the neckband has no power at all, charge it continuously for more than 1 hour and check again (refer to the app).
2. Try using a different cable and charger to see if it works properly.
3. Charge the neckband in a cooler environment and attempt again.

If the issue remains unresolved, please contact our Customer Service.

1. Ensure the charging port of the Neckband Pro is free of dirt and debris.
2. Try using a different cable or charger (5V 1A or above) to verify functionality.
3. Insert and remove the charger multiple times to ensure proper connection.

If the issue remains unresolved, please contact our Customer Service.

1. The earphones will automatically disconnect when the Bluetooth connection exceeds the range. If you return to the connection range within 10 minutes, they will automatically reconnect successfully. If they stay outside of the connection range for more than 10 minutes, they will enter a timeout state without a connection. You can manually reconnect them by placing the earphones into the charging case, closing the charging case for 5 seconds, and then opening the charging case to power on the earphones and initiate the connection again.
2. Long-press the Smart Dial and function button for 5 seconds and reset to factory settings, complete when the indicator light flashes red for 10 seconds. Then re-pair for use.
3. If the issue remains unresolved, please download and upgrade to the latest version of the Nothing X App and try again.

1. When connected to multiple devices, the earphones will prioritise reconnecting with the last device connected upon powering on again. Please confirm if the last device you used the earphones with is the one you are currently using.
2. If the earphones are powered on by separating the magnetic connection and the last connected device is not found within 1 minute, the earphones will enter a timeout state. In this case, manually reconnect the earphones by magnetically attaching and detaching them for 5 seconds to power them on again.
3. Alternatively, perform a factory reset by simultaneously holding down the Smart Dial and the function button for 5 seconds until the indicator light flashes red for 2 seconds. After that, set up the earphones again.
4. If the problem persists, download and upgrade to the latest software using the Nothing X App.

Note: All device customisations are already integrated into the Settings of Nothing OS version 1.1.4 and higher. Please ensure that the Nothing X app is updated through the Google Play Store.