Understanding the Two Modes

Bluetooth Mode is designed for everyday listening, such as music and podcasts, with volume controlled through your phone. Local Mode is designed specifically for sleep and uses a different volume-control system.

The two modes have independent volume settings. When switching from Bluetooth Mode to Local Mode after falling asleep, the earbuds automatically use the lower of the Bluetooth and local volume settings to prevent the volume from being too loud and disturbing your sleep. To prevent the volume from being too low, a local volume setting below level 2 is treated as level 2 when switching modes. If the local volume is set to level 2 or higher, the original setting is retained.

How to Switch Modes

You can switch between Bluetooth Mode and Local Mode in the following ways:

1. Double-tap the left earbud. This function is enabled by default.

2. Switch modes in the soundcore app.

3. When the earbuds detect that you have fallen asleep, they automatically switch to Local Mode and play the built-in white noise by default. This function is enabled by default.

How to Adjust Volume in Local Mode

You can adjust the volume using the slider in the soundcore app or by tapping the earbuds.

In Dual-Earbud Mode, the default controls are:

• Triple-tap the left earbud to decrease the volume.

• Triple-tap the right earbud to increase the volume.

You can also customise these controls in the soundcore app.

Note: After switching to Local Mode, your phone can no longer directly control the earbud volume. You can adjust the volume using the triple-tap controls or in the soundcore app.

How to Use the Play After Sleep Feature

The Play After Sleep feature offers three settings:

1. Play Local Audio After Sleep: when the earbuds detect that you have fallen asleep, they automatically switch from Bluetooth Mode to Local Mode, play the built-in audio (snore-masking soundscape by default), and turn off noise cancellation. If the audio was paused before you fell asleep, it will not start playing automatically after you fall asleep.

2. Stop Playback After Sleep: when the earbuds detect that you have fallen asleep, they automatically pause audio playback.

3. Keep Playing After Sleep: your pre-sleep playback settings continue after you fall asleep, and noise cancellation automatically turns off.

Note: To resume Bluetooth audio, double-tap the left earbud to switch back to Bluetooth Mode.

Understanding Automatic Mode Switching

Anker soundcore Sleep Earbuds 4 has Smart Mode Switching enabled by default and may automatically switch modes in the following situations:

1. If the earbuds detect little or no movement for an extended period, they may incorrectly detect that you have fallen asleep and switch to Local Mode.

2. If you turn over significantly while sleeping, you may accidentally trigger the tap controls, causing the mode to switch unexpectedly.

If you do not want this to happen, you can turn off the tap function or assign it to another function in the app.

How to Set the Playback Timer

The timer applies to both Local Mode and Bluetooth Mode. The timer you set in the player on the device home page of the app remains active when you switch between modes. The remaining timer duration continues after the mode is switched.

To have the earbuds switch or stop playback automatically based on sleep detection, select one of the three Play After Sleep options described above.

If you want to stop playback after a specific period, such as 30 minutes, use Earbud Auto-Stop Timer. Go to Settings > Earbud Auto-Stop Timer.

What to Do if There Is No Sound After Switching to Local Mode

If there is no sound after the earbuds switch to Local Mode after sleep, check the following:

1. Volume is too low: when switching to Local Mode, the earbuds inherit the lower of the Bluetooth and local volume settings, which may result in low volume. Increase the volume using the earbuds or the soundcore app.

2. An accidental tap reduced the volume: turning over or moving your head during sleep may accidentally trigger a triple-tap gesture, reducing the volume to 0 or a very low level. Turn off tap controls in the soundcore app to prevent accidental triggers.

3. Audio already stopped before sleep: if Bluetooth audio had already stopped before you fell asleep, such as when a podcast that does not support looping ended, the audio will not start playing after the earbuds switch to Local Mode.

Why Music Plays Through the Phone Speaker

Check whether the earbuds have accidentally been switched to Local Mode. In Local Mode, the earbuds can only play built-in white noise and cannot play music from a Bluetooth-connected device. As a result, music will play through the phone speaker instead.

If you need further assistance, please reach out through the official support channel.