1. Introduction
Thank you for choosing the Boult Audio Z40 True Wireless Earbuds. This manual provides essential information for setting up, operating, and maintaining your earbuds to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.
Image: Boult Audio Z40 True Wireless Earbuds in their charging case, showcasing the blue color variant. The earbuds are securely nestled in their compartments, and the case is open, revealing the charging indicators.
2. What's in the Box
- Boult Audio Z40 Earphones (Left and Right)
- Charging Case
- Extra Pair of Eartips (various sizes)
- USB Type-C Charging Cable
- User Manual
3. Setup
3.1 Initial Charging
Before first use, fully charge the earbuds and the charging case. Connect the provided USB Type-C cable to the charging port on the case and a power source. The indicator light on the case will show charging status.
Image: The Boult Audio Z40 earbuds in their charging case, highlighting the 60 hours of total playtime and the Type-C fast charging capability. The image also shows a "10 mins Charge = 100 mins Playtime" indicator.
3.2 Pairing with a Device
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "Boult Audio Z40" in the list of available Bluetooth devices.
- Select "Boult Audio Z40" to connect. A voice prompt will confirm successful pairing.
Image: The Boult Audio Z40 earbuds in their charging case, illustrating the Bluetooth 5.2 connectivity and the "Blink & Pair" feature. A phone screen in the background shows "Boult Audio Z40 Connected".
3.3 Wearing the Earbuds
Choose the correct size of eartips for a comfortable and secure fit. Insert the earbuds into your ears and gently twist them until they feel snug. A proper fit ensures optimal sound quality and noise isolation.
Image: A Boult Audio Z40 earbud placed next to its open charging case, emphasizing its ergonomic design for a comfortable and secure fit during various activities.
4. Operating Instructions
4.1 Touch Controls
The Boult Audio Z40 earbuds feature intuitive touch controls for managing audio playback, calls, and voice assistants.
| Action | Function |
|---|---|
| Single Tap (L/R) | Play/Pause Music, Answer/End Call |
| Double Tap (L) | Previous Track |
| Double Tap (R) | Next Track |
| Triple Tap (L/R) | Activate Voice Assistant (Siri, Google Assistant, Cortana) |
| Long Press (L/R, 2s) | Reject Call |
| Long Press (L/R, 3s) | Toggle Gaming Mode (Low Latency) |
4.2 Calling Functionality (Zen™ ENC Mic)
The Z40 earbuds are equipped with Zen™ Environmental Noise Cancellation (ENC) microphones, ensuring clear voice quality during calls by reducing background noise.
Image: An X-ray like view of the Boult Audio Z40 earbud, highlighting the internal components and the Zen™ ENC Mic, which is designed to cancel unwanted noise for crystal clear calls.
4.3 Low Latency Gaming Mode
Activate the low latency gaming mode for a synchronized audio-visual experience, reducing audio delay during gaming or video playback. Refer to the touch controls table for activation.
Image: The Boult Audio Z40 earbuds and charging case, with text emphasizing "Combat™ gaming" and "Low latency," indicating their suitability for an uninterrupted gaming experience.
5. Maintenance
5.1 Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove eartips and clean them with mild soap and water, then dry thoroughly before reattaching.
- Do not use abrasive cleaners or solvents.
5.2 Water Resistance (IPX5)
The Boult Audio Z40 earbuds are IPX5 water-resistant, meaning they can withstand splashes and sweat. They are not designed for submersion in water. Avoid exposing them to strong jets of water or prolonged immersion.
Image: Two Boult Audio Z40 earbuds resting on a damp, rocky surface, with text clearly stating "IPX5 water resistant," indicating their durability against splashes and sweat.
5.3 Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged. Store in a cool, dry place away from extreme temperatures.
6. Troubleshooting
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on Bluetooth on your device. Forget "Boult Audio Z40" from your device's Bluetooth list and re-pair. |
| No sound from one earbud | Place both earbuds back in the case, close the lid, wait a few seconds, then open again. Check device audio settings. |
| Low volume | Increase volume on both your device and through earbud touch controls. Ensure eartips provide a good seal. |
| Poor call quality | Ensure the microphone is not obstructed. Move to a quieter environment. |
| Earbuds not charging | Check charging cable and power source. Ensure charging contacts on earbuds and case are clean and dry. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | Z40 |
| Bluetooth Version | 5.3 |
| Wireless Range | 10 Metres |
| Playtime | Up to 60 Hours (with charging case) |
| Charging Time | Approx. 1.5 Hours |
| Driver Size | 10mm BoomX™ Drivers |
| Microphone | Zen™ ENC Mic |
| Water Resistance | IPX5 |
| Charging Port | Type-C |
| Control Type | Touch |
| Item Weight | 43.1 Grams |
Image: A detailed close-up of the Boult Audio Z40 earbud's speaker grille and eartip, highlighting the 10mm BoomX™ tech drivers responsible for deep and dynamic bass.
8. Warranty and Support
Boult Audio products are designed for durability and performance. For information regarding warranty coverage and terms, please refer to the warranty card included with your product or visit the official Boult Audio website. For technical support or service inquiries, please contact Boult Audio customer service.
You can find more information and support resources on the official Boult Store: Boult Audio Store
