How to

1. On Android/iOS devices:
Short press the "Button" to activate the voice assistant.
2. On Nothing Phone:
By default, the "Button" does not activate the voice assistant.
To enable this function, open the Nothing X app, go to Controls > Button, and assign either the single press or press and hold gesture to Voice Assistant.Once configured, the assigned gesture will activate your voice assistant.

For more operations, please download the Nothing X App mobile application – this is available for download on Google Play and iOS App Store.

1. When the headphones are connected to two devices, and neither device is in a call state:
The headphones will output the ringing sound from the device that's receiving a call.
2. When the headphones are connected to two devices, and one of the devices is already in a call:
The headphones will play the incoming call alert and the headphones's button will prioritise controlling the device that's receiving a call. If the headphones hang up the current call, the audio channel will switch to the other device that's receiving a call.

Note: please refer to the product instructions on the official Nothing official website or get in touch with our Customer Support.

1. When the headphones are connected to two devices, and both mobile devices are in an idle state:
a) The headphones will output the sound corresponding to that phone if there is an incoming call or notification on either device.
b) If one device starts playing music first, the headphones will output the sound of the corresponding phone.

2. When the headphones are connected to two devices, and only one device is in the music-playing state:
a) Incoming or outgoing calls on the device that is not playing music will mute the current music on the headphones (without pausing) and switch to the sound of the incoming or outgoing device. After the call is ended, it will switch back to the connected device playing music.
b) If the device not playing music starts playing music, there will be no sound channel switching. Both devices will remain in the playing state and the device that started playing music later will be in a muted state.

The gesture controls will affect the device currently outputting audio through the headphones. If there is no audio playing, the controls will operate the last connected device or the device that most recently played audio through the headphones.

Automatic reconnection on power on / exit from sleep mode:

1. When dual connection is enabled, and the headphones power on without USB-C Audio cable or 3.5mm Aux-In cable plugged in, if the number of connected devices is fewer than two, the headphones will attempt to reconnect to the last two connected devices. If dual connection is enabled for the first time and there are no previous reconnection records, the headphones will maintain a single-device connection. (In single connection mode, the headphones will not automatically enter pairing mode; pairing a new device requires the user to manually long-press the Bluetooth pairing button.) If reconnecting to other devices fails, the headphones will stay connected to a single device and will not enter pairing mode.
2. If the headphones and connected devices go out of range and then come back within range, the headphones will only reconnect to the device that was disconnected due to distance.
3. Reconnection will not be triggered if the headphones are in a call or music state.
4. If the headphones are in the reconnection process but a call or music scenario occurs, the headphones will pause reconnection for 5 seconds. If the call or music ends within the reconnection timeout, the headphones will resume the paused reconnection until the timeout expires. After the reconnection timeout, connection can only be initiated from the device side.

Connection snatch:
When the headphones are in dual connection mode, connection snatch follows these principles:
1. If neither of the two connected phones is in a music state, the headphones will disconnect from the phone connected first and connect to the device initiating the snatch.
2. When the headphones enter pairing mode and are already connected to two devices, they will disconnect from one device to become discoverable and connectable.
3. If the headphones are connected to two devices and a third device with a connection record attempts to snatch the connection, the headphones will disconnect one device and connect to the third device.

Tips:
Music state:
1. If one of the two connected phones is playing music, the headphones will disconnect the phone that is not playing music and connect to the device initiating the snatch.
2. If both phones are playing music, the headphones will disconnect the phone whose music is not outputting through the headphones (i.e., the muted music device) and connect to the device initiating the snatch.

Call state:
If any of the two phones is in a call, connection snatch is not allowed.

Press and hold the pairing button on Nothing headphone (1) for 10 seconds. When the red light flashes 3 times followed by a flashing white light, the reset is successful.

After connecting the headphones to your phone, you can adjust the volume directly on your device, or by rolling the Roller to the right (increase) or left (decrease) on the headphones.

For more operations, please download the Nothing X App mobile application – available on Google Play and the iOS App Store.

Bass Enhance is turned off by default. You can enable or disable it by going to the Nothing X App:Home Page>>Bass Enhance, then tapping the switch on the setting card. You can also tap the icon in the bottom-right corner of the card to adjust the intensity.
For more operations, please download the Nothing X App mobile application – this is available for download on Google Play and iOS App Store.

Press & hold the Roller to switch between Active Noise Cancellation and Transparency Mode.
For more operations, please download the Nothing X App mobile application – this is available for download on Google Play and iOS App Store.

LDAC high-definition audio can be understood as a 'highway' between your phone and earbuds, supporting 24-bit depth, 96 kHz sampling rate and a 990 kbps streaming rate. The high transmission bitrate ensures that high-resolution audio files are not excessively compressed, retaining more musical details and significantly enhancing sound quality.

Note: this high-definition audio requires phone support and that the selected codec is enabled on the phone.

For Android phones:
1. Ensure your phone supports LDAC by checking if it is enabled by default. If not, go to Settings > Developer options to check for LDAC support.
2. If your phone supports LDAC, enable it in the settings.
3. Connect the earbuds to the Nothing X app. In the app, go to Device settings. Enable High-quality audio to activate LDAC high-definition audio encoding.

Tips for optimal LDAC performance:
1. To ensure smooth playback, set LDAC playback quality to default adaptive in the phone's developer options.
2. If opting for higher-quality audio bitrate, we recommend disabling the dual connection feature to ensure sufficient bandwidth for LDAC high-quality streaming.

Note: iOS devices only support the AAC high-quality audio codec over Bluetooth and currently do not support other high-quality audio codecs like LDAC.

To enhance the experience for Nothing users, when the Nothing headphone (1) is paired with a Nothing phone, the “Button” function gains an additional feature – audio source switching, making it easier to quickly switch and play your favorite audio content. The specific behavior is as follows:

On Nothing OS devices:
Short press: Switch audio source
Long press: Activate Smart Assistant

On other Android/iOS devices:
Short press: No function (audio source switching is not supported on third-party devices)
Long press: Activate Smart Assistant

Note: The audio source switching function is only available when paired with a device running Nothing OS.

ON/OFF Switch

Switch up: Power off
Switch down: Power on

Pairing
Hold the bluetooth pairing button for 2 seconds until the white LED start to blink: Pairing

Roller
Roll Right/Left: Volume Up/Down
Press: Play/Pause
Press & Hold: ANC/Transparency Mode

Paddle
Push Right: Next Track/Answer Call
Push Left: Previous Track/Reject Call
Hold Right: Fast Forward
Hold Left: Rewind

Button
Nothing OS
Press: Switch Audio Sources
Hold: Smart Assistant

Android/iOS
Press: Smart Assistant


More options in the Nothing X app.
*Optional functions:

1.Nothing News AI (Nothing OS Only)
2.Nothing Radio (Nothing OS Only)
3.Activate Voice Assistant (Chatgpt on Nothing OS)
4.Noise Control (ANC On - Transparency - ANC Off) (All Platforms)
5.Spatial Audio Mode Cycle (Off - Static - Dynamic) (All Platforms, with switch prompt tone)
6.EQ Mode Cycle (Balanced - Vocal - Treble Boost - Bass Boost) (All Platforms, without switch prompt tone)
7. Essential Space （Nothing OS only）