Boult Audio Z15 User Manual

Product Introduction

This section introduces the components of the Boult Audio Z15 TWS earbuds package.

• TWS Earbuds: The wireless earbuds themselves.
• Earbud Charging Case: The case used to store and charge the earbuds.
• USB Cable: A cable for charging the charging case.
• Silicon Eartips: Multiple sizes (S, M, L) are provided for a comfortable fit.
• Ear Cap: Refers to the eartips.
• User Manual: This document.

Summary of Button Functions

This section details the functions controlled by the touch-sensitive areas on the earbuds and the indicators on the case.

Earbud Components:

• 1. Antenna: Internal component.
• 2. Earbuds LED Indicator: Shows charging and connection status.
• 3. Earbuds Touch Control Area: The surface for touch commands.
• 4. Pod Charging Pin: Connects to the charging case to charge the earbuds.

Charging Case Components:

• 5. Case Pod Charging Pin: Connects to the earbuds for charging.
• 6. Case Battery Charge Indicator: Shows the charge level of the case.
• 7. C-Type Charging Connector: Port for charging the case.

1. Connecting to Earbuds

First Time Setup:

Remove the earbuds from the charging case. They will automatically turn on. Enable Bluetooth on your device, search for "Boult Audio Airbass", and select to connect.

Regular Use:

On subsequent uses, the earbuds will automatically connect to the last paired device.

2. Start Listening

Place the earbuds into your ears and twist them slightly for a comfortable and snug fit. For optimal sound quality and to prevent issues, it is recommended to regularly clean the dust mesh on the earbuds to avoid blockage by dirt or debris.

3. Power On & Off

Power-On:

• Remove the earbuds from the case; they will automatically turn on and pair with each other.
• Alternatively, long-press the touch control area on both earbuds simultaneously for 2 seconds to turn them on and pair.

Light Status (Power On): One earbud's LED will flash red and blue alternatively, while the other earbud's LED will flash blue quickly.

Power-Off:

• Earbuds will automatically turn off and enter charging mode when placed back into the charging case.
• If disconnected from Bluetooth and left idle for 3 minutes, the earbuds will turn off.
• To manually turn off, disconnect from Bluetooth and long-press the touch control area on either earbud for 5 seconds.

4. Start Charging

Charging the Earbuds:

Place the earbuds into the charging case. The charging pins inside the case will connect to the earbuds. The case's LED indicators will show the case battery level. The first and fourth LED lights will remain white to indicate the earbuds are charging. These lights turn off when the earbuds are fully charged.

Charging the Case:

Connect the charging case to a 5V/1A power adapter using the included Type-C cable. The charging light on the case will flash white while charging. Once fully charged, the white light will remain solid, and the case should be disconnected from the power source.

5. Specification

Button Functions:

• Music Play/Pause: Single click on L or R earbud.
• Next Song: Double click the R earbud.
• Previous Song: Double click the L earbud.
• Pick up call: Single click on L or R earbud.
• End call/Reject call: Double click on L or R earbud.
• Voice Assistant: Long press 3 seconds on L or R earbud.

6. Clear to Pairing

Clear Pairing Record:

To clear the pairing record of earbuds and mobile phones, take out the earbuds from the charging case. Then, touch the left and right earbud touch control areas 5 times each. This action will clear the Bluetooth device records. Afterward, search for the Bluetooth name "Boult Audio Airbass" on your device and connect.

Resume Pairing of Left and Right Earbuds:

Place both earbuds into the charging case and ensure they are charging for a few minutes. Then, take both earbuds out of the charging case. They will automatically enter pairing mode.

Trouble Shooting

P: The earbuds don't pair with each other?

A: Place the earbuds into the case for charging for a few seconds. Then, take them out of the case and try to connect again.

P: The earbuds don't charge when placed into the case.

A: Check if the charging case light turns on when the earbuds are placed inside. If it does not light up, charge the case first.

P: The sound is imbalanced between the left and right side.

A: Please clean the earbuds' dust mesh after use.