Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your GOBOULT Z20 Truly Wireless Bluetooth Ear Buds. Please read this manual carefully before using the product to ensure optimal performance and longevity.
What's in the Box
Upon unboxing your GOBOULT Z20 Ear Buds, please verify that all the following components are included:
- Z20 Earphones (Left and Right)
- Z20 Charging Case
- Type-C Fast Charging Cable
- Extra Pair of Eartips
- User Manual (this document)
- Warranty Card
Product Overview
The GOBOULT Z20 Ear Buds are designed for a superior audio experience with advanced features. Familiarize yourself with the components and key functionalities.

Image: The GOBOULT Z20 Truly Wireless Bluetooth Ear Buds in Jet Black, shown with their charging case. The earbuds feature a sleek design with the GOBOULT logo.

Image: An overview highlighting key features of the GOBOULT Z20, including Bluetooth 5.3, 51H Playtime, BoomX™ Tech bass drivers, IPX5 water resistance, Zen™ ENC Mode, Knurled Design, and Touch Controls.
Key features include:
- 51 Hours Playtime: Extended battery life for prolonged use.
- Zen™ ENC Mic: Environmental Noise Cancellation for clear calls.
- Low Latency Gaming: Optimized for seamless audio synchronization during gaming.
- Rich Bass Drivers: Enhanced audio with deep, resonant bass.
- Type-C Fast Charging: Quick charging capability.
- Blink & Pair Bluetooth 5.3: Fast and stable wireless connection.
- Touch Controls: Intuitive control over music, calls, and voice assistants.
- IPX5 Water Resistant: Protection against sweat, rain, and splashes.
Setup
Follow these steps to set up your GOBOULT Z20 Ear Buds for first-time use:
- Initial Preparation:
Before first use, remove any protective film from the charging contacts on the earbuds. Place both earbuds into the charging case and ensure they are fully charged. Connect the Type-C cable to the charging case and a power source.
- Power On and Pairing:
Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode (indicated by flashing LED lights). On your device (smartphone, tablet, laptop), enable Bluetooth and search for "GOBOULT Z20" in the list of available devices. Select it to connect. Once connected, the LED indicators on the earbuds will turn off or show a steady light, and you will hear an audio prompt.

Image: A diagram illustrating the initial setup steps (removing film, opening case for auto-boot) and detailed touch control functions for both left and right earbuds.
- Automatic Reconnection:
After the initial pairing, the earbuds will automatically connect to the last paired device when removed from the charging case, provided Bluetooth is enabled on the device and it is within range.
Operating Instructions
Touch Controls
The GOBOULT Z20 Ear Buds feature intuitive touch controls on each earbud. Refer to the diagram below for specific functions:

Image: A detailed diagram showing touch control gestures for the left and right earbuds, including single tap for play/pause/call receive, double tap for previous/next song or reject/end call, triple tap for volume control, and long tap for voice assistant.
- Single Tap: Music Play/Pause, Call Receive
- Double Tap (Left Bud): Previous Song
- Double Tap (Right Bud): Next Song
- Double Tap (Either Bud during call): Reject/End Call
- Triple Tap (Left Bud): Volume Down
- Triple Tap (Right Bud): Volume Up
- Long Tap (Either Bud): Activate Google Assistant / Siri
- Four Taps (Either Bud): Activate Combat Mode (Low Latency Gaming)
Calling Functionality (Zen™ ENC Mic)
The Zen™ ENC (Environmental Noise Cancellation) Mic ensures clear conversations by filtering out background noise. To use for calls:
- Receive Call: Single tap on either earbud.
- End Call: Double tap on either earbud.
- Reject Call: Double tap on either earbud.

Image: An illustration demonstrating how the Zen™ ENC Mode isolates your voice from environmental noise for crystal-clear calling.
AI Voice Assistant
Activate your device's voice assistant (Google Assistant or Siri) by long-pressing either earbud. This allows for hands-free control and quick access to information.

Image: A visual guide showing how to activate AI Voice Assistant (Ok Google, Hey Siri) by long-pressing the earbud, enabling hands-free commands.
Low Latency Gaming (Combat Mode)
For an immersive gaming experience with minimal audio delay, activate Combat Mode by tapping either earbud four times. This optimizes audio synchronization for gaming.
Charging
The GOBOULT Z20 Ear Buds and their charging case are equipped with Type-C Fast Charging for convenience.
- Charging the Earbuds: Place the earbuds into the charging case. They will automatically begin charging.
- Charging the Case: Connect the provided Type-C cable to the charging port on the case and to a USB power adapter (not included) or a computer's USB port. The LED indicator on the case will show charging status.
- Fast Charging Benefit: A quick 10-minute charge provides approximately 100 minutes of playtime.
- Full Charge Time: Approximately 90 minutes for both earbuds and case.

Image: A visual representation of the Type-C fast charging feature for the GOBOULT Z20 earbuds and case, highlighting that 10 minutes of charge provides 100 minutes of playtime.
Maintenance
To ensure the longevity and optimal performance of your GOBOULT Z20 Ear Buds, follow these maintenance guidelines:
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Eartips: Remove and clean the eartips periodically. Ensure they are completely dry before reattaching.
- Water Resistance (IPX5): The earbuds are IPX5 water resistant, meaning they can withstand sweat, light rain, and splashes. Do not submerge them in water or expose them to strong jets of water. Dry them thoroughly if they get wet before placing them back in the charging case.
- 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.

Image: A visual representation of the GOBOULT Z20 earbuds being water-resistant, indicating their suitability for sweat, rain, and splashes.
Troubleshooting
If you encounter issues with your GOBOULT Z20 Ear Buds, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing/connecting. | Bluetooth off on device, earbuds not in pairing mode, interference, previously paired device. |
|
| No sound from one or both earbuds. | Low battery, not connected, volume too low, earbud dirty. |
|
| Charging case not charging. | Faulty cable/adapter, dirty charging port. |
|
| Poor call quality. | Environmental noise, mic obstruction. |
|
Specifications
Detailed technical specifications for the GOBOULT Z20 Truly Wireless Bluetooth Ear Buds:
| Feature | Detail |
|---|---|
| Model Name | Z20 (AirBass) |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth 5.3 |
| Bluetooth Range | 10 Metres |
| Battery Life (Earbuds + Case) | Up to 51 Hours |
| Charging Time | Approx. 90 Minutes (Case) |
| Fast Charging | 10 mins charge = 100 mins playtime |
| Headphones Jack | Type-C Fast Charging |
| Noise Control | Sound Isolation (Zen™ ENC Mic) |
| Frequency Response | 20 Hz |
| Sensitivity | 117 dB |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 10 Millimetres |
| Audio Latency | 50 Milliseconds |
| Water Resistance Level | IPX5 Water Resistant |
| Control Type | Touch, Voice (Google Assistant, Siri, Amazon Alexa) |
| Item Weight | 65 Grams |
| Product Dimensions | 6.5 x 3.5 x 3.5 cm |
| Material | Plastic |
| Country of Origin | India |
Warranty and Support
Your GOBOULT Z20 Truly Wireless Bluetooth Ear Buds come with a manufacturer's warranty to ensure your peace of mind.
- Warranty Period: 1 Year Manufacturer's Warranty from the date of purchase.
- Claiming Warranty: For warranty claims or technical support, please refer to the contact information provided on your warranty card or visit the official GOBOULT support website. Keep your proof of purchase for warranty validation.
For further assistance, please contact GOBOULT customer service.





