How to check:

• Look at the position of the side switch on the S1
• Set the switch to Enhanced Dynamic mode [Middle] or Condenser mode [Right]

Normal Status Indicators

• The S1 can be powered on and responds normally
• Monitoring, connection, and pairing functions are available

⚠ Common Mistakes

• The side switch is positioned in the middle but not fully engaged
• Assuming that charging mode means the device is in working mode

How to check:

• Put on the included monitoring earphones
• Speak normally into the S1 microphone

Normal status indicators:

• You can clearly hear your own voice in the earphones
• Audio is continuous, with no obvious dropouts

If this step works, it confirms that:

• The microphone is functioning properly
• The earphones and monitoring signal chain are working
• The S1 is in a usable state

How to identify: Check the indicator light on the S1:

• Solid red → The device is currently muted
• Solid green / Green blinking → Not muted

How to fix:

• Single-press or press and hold the mute button (refer to the actual hardware markings)
• Once mute is disabled, the indicator light will return to its normal color

Common case 1｜Bluetooth is automatically turned off

• A USB-C cable is connected
• Multitrack recording is enabled
• Bluetooth has been inactive for a period of time

• Disconnect the USB-C cable
• Restart the S1 and search for Bluetooth again\

Common Case 2｜Monitoring Path Has Changed

• The S1 is connected to a host device or mixer
• Hardware monitoring has been turned off

① Microphone Volume (Vocal Level) Purpose: Determines how loud your speaking or singing voice is

• Adjust the microphone gain buttons
• Speak into the S1 while listening and observe changes in monitoring volume
• Make sure the device is not in one-touch mute mode

Normal status indicators:

• The volume changes noticeably when you speak
• You don’t need to be extremely close to the microphone to be heard

⚠ Common mistakes:

• Microphone gain set to the minimum
• Accidentally muting the mic and forgetting to unmute it

② Monitoring Volume (What You Hear in the Earphones) Purpose: Controls how loud the sound is in your earphones

• Press and hold the earphone touch controls to adjust monitoring volume
• Confirm that monitoring is enabled

Normal status indicators:

• Sound in the earphones is clear and controllable
• Loudness changes when adjusting the monitoring volume

⚠ Common mistakes:

• The microphone is working, but monitoring volume is turned down
• Assuming “no sound in earphones = the device is not working”

③ Accompaniment Volume (Music Played from the Phone) Purpose: Determines whether the accompaniment can be heard and mixed into the output

• Check the phone’s system volume
• Check the accompaniment volume control on the S1
• Make sure it is not independently turned down or muted

Normal status indicators:

• A proper balance between accompaniment and vocals
• You don’t hear “only vocals” or “only accompaniment”

⚠ Common mistakes:

• Phone volume is normal, but the S1 accompaniment volume is set to zero
• Mistaking this for a Bluetooth or device malfunction

If you encounter any of the following situations:

• The indicator light is blinking abnormally
• The earphones do not respond
• Repeated operations result in no change

Please try the following steps:

1. Power off the S1
2. Wait 5 seconds, then power it on again
3. Put on the earphones and test monitoring

• Check whether the device is muted
• Check whether hardware monitoring has been turned off
• Check whether the S1 is connected to another device and an external monitoring path has been selected, causing the monitoring route to change

• Indicator light ≠ monitoring is working
• Be sure to complete the step “speak into the microphone” to confirm actual audio output