BOULT Z40 Ultra 35dB ANC Touch Control and Dual Device User Manual

Product Name – TWS Bluetooth Headset
Model – Boult Audio AirBass
Speaker – 10mm
Bluetooth Range – ~10m/33ft (without any obstacles)
Earbuds Charging Time – 90 mins
Frequency Range – 20Hz – 20KHz
Technology – HFP/HSP/A2Dp/AVRCP
Input – DC5V = 1A

How to use your Z40 Ultra?

Touch Controls

The Touch Area (Multi-Functional Touch Panel) is located in the upper part of the earbuds handle.

Wearing Earbuds

The earbud marked with L is worn on the left ear and the earbud marked with R is worn on the right ear

Power ON/OFF:

Power ON:
Auto: Open the charging case and take out the earbuds to Power ON.

Manually: Tap and hold the multifunction button (MFB) for 3 seconds.

Power OFF

Auto: Place both the earbuds in the charging case, close the lid.
Manually: Hold MFB for 5 seconds.

Noise Cancellation Modes: Press the right MFB for 2s to switch between ANC mode, Transparency mode or Normal mode

Play/Pause Tap the MFB once	Voice Assistant – Press the left MFB for 2s
Next Track Double Tap the right MFB	Answer the Call Tap the MFB once
Previous Track Double Tap the left MFB	End Call/Reject Double Tap the MFB
Volume + Triple Tap the right MFB	Game/Music Mode Tap the Left MFB four times
Volume – Triple Tap the left MFB	EQ modes Tap Right MFB four times

Pairing

Open the charging case, and take out the earbuds, the earbuds LEDs will start flashing automatically until paired with a device.
Activate Bluetooth on the device, turn on Bluetooth, search for pairing name “Boult Audio Airbass” and click on it.
Single Mode: When on dual mode, put one earbud into the charging case. Only take one earbud out of the charging case and connect it.

Dual Device Connectivity

Connect the Z40 Ultra with your first device. Once your Z40 Ultra is paired with the first device, turn off the Bluetooth of your first device.
Now turn on the Bluetooth of your second device and follow the same steps to connect to your Z40 Ultra Bluetooth earbuds.

Once Z40 Ultra is connected to your new device, turn on the Bluetooth of the first device.
You will hear a sound again “Your earphones are now connected” which means both your devices are now connected to the Z40 Ultra earbuds.

You can now enjoy music and take calls from both your connected devices on your Z40 Ultra earbuds.

Bluetooth Lost

Bluetooth Lost: Turn off mobile phone’s Bluetooth, earbuds will enter pairing mode and can pair with other devices.
If the connection range is exceeded, the earbuds will enter back into connection mode. In case of no connection within 5 minutes, the earbuds will turn off.

Reset

If your earbuds fail to pair, or only one works, reset them.

Delete all “Boult Audio Airbass” Bluetooth records on the phone and turn off Bluetooth.
Put earbuds in the charging case and then take out to pairing modes, tap L&R 7 times simultaneously, hear “DU” prompt voice to clear all pairing.
Put earbuds back into the charging case.

Voice Prompts

You will hear ‘power on’ when the headset powers on.
You will hear ‘power off’ when the headset powers off.
You will hear ‘connected’ when the headset is paired.
You will hear ‘low battery’ when the headset is in low power status
You will hear ‘gaming mode’ when the headset is in gaming mode.

Maintenance Instructions

Warranty is valid/invalid only basis of the below criteria:

The product should be purchased through legal and formal channels to be applicable for warranty.
Damaging the product intentionally/unintentionally, or due to natural disasters, etc. is not covered in the warranty.

Documents / Resources

BOULT Z40 Ultra 35dB ANC Touch Control and Dual Device [pdf] User Manual
Z40 Ultra 35dB ANC Touch Control and Dual Device, Z40 Ultra, 35dB ANC Touch Control and Dual Device, Touch Control and Dual Device, Dual Device

References

User Manual

Know your Z40 Ultra

Whats In the Box?

Product specification