1. Introduction
Thank you for choosing the Monster Blaster Micro Wearable Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your speaker. Please read it carefully before use and retain it for future reference.

Image: The Monster Blaster Micro speaker, highlighting its Pure Monster Sound technology.
2. Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for extended periods.
- Avoid dropping or subjecting the speaker to strong impacts.
- Do not attempt to disassemble or modify the speaker.
- Keep the speaker away from medical devices.
- Dispose of the speaker and its battery responsibly according to local regulations.
3. Package Contents
Verify that all items are present in your package:
- Monster Blaster Micro Wearable Bluetooth Speaker
- USB-C Charging Cable
- User Manual (this document)
4. Product Overview
The Monster Blaster Micro is a compact, wearable Bluetooth speaker designed for portability and hands-free use. It features a clip-on design, magnetic attachment, and IPX7 waterproofing.

Image: The Monster Blaster Micro speaker held in a hand, illustrating its compact size and ultralight design with dimensions (4.8 cm x 6.4 cm x 2.4 cm) and weight (83g).

Image: A detailed view of the Monster Blaster Micro speaker, showing the control buttons and their functions: '+' for volume up/next song, 'O' for power/play/pause/calls/TWS, and '-' for volume down/previous song.
5. Setup
5.1 Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C cable to the charging port on the speaker and the other end to a USB power adapter (not included).
- The LED indicator will show charging status.
- A full charge provides up to 12 hours of playtime at 50% volume.

Image: A hand connecting a USB-C charging cable to the Monster Blaster Micro speaker, illustrating the charging process.

Image: The Monster Blaster Micro speaker with a graphic indicating up to 12 hours of playtime on a single charge, measured at 50% volume.
5.2 Powering On/Off
- To Power On: Long press the 'O' button until the LED indicator lights up.
- To Power Off: Long press the 'O' button until the LED indicator turns off.
5.3 Bluetooth Pairing
To connect your speaker to a Bluetooth device:
- Ensure the speaker is powered on and in pairing mode (LED will flash).
- On your device, go to Bluetooth settings and search for available devices.
- Select "Monster Blaster Micro" from the list.
- Once connected, the LED indicator will show a solid light.

Image: The Monster Blaster Micro speaker next to a smartphone displaying its Bluetooth settings, showing a successful connection to "Monster Blaster Micro" via Bluetooth 5.4.
6. Operating
6.1 Basic Controls
- Play/Pause: Short press the 'O' button.
- Volume Up: Short press the '+' button. Long press for quick volume increase.
- Volume Down: Short press the '-' button. Long press for quick volume decrease.
- Next Track: Double click the '+' button.
- Previous Track: Double click the '-' button.
6.2 Hands-Free Calling
When connected to a smartphone, the speaker supports hands-free calls.
- Answer/End Call: Short press the 'O' button.
- Reject Call: Long press the 'O' button.

Image: A man working, with the Monster Blaster Micro speaker clipped to his overalls, demonstrating hands-free call functionality.
6.3 True Wireless Stereo (TWS) Pairing
You can pair two Monster Blaster Micro speakers for an immersive stereo sound experience.
- Ensure both speakers are powered on and not connected to any other Bluetooth device.
- On one speaker (this will be the primary), double click the 'O' button to enter TWS pairing mode.
- The speakers will automatically connect to each other.
- Once paired, connect your device to the primary speaker via Bluetooth as described in Section 5.3.
6.4 IPX7 Waterproof Rating
The Monster Blaster Micro speaker has an IPX7 waterproof rating, meaning it can withstand immersion in water up to 1 meter deep for 30 minutes. This makes it suitable for outdoor activities and use near water, but it is not designed for prolonged submersion or use in saltwater.

Image: The Monster Blaster Micro speaker being splashed with water, visually confirming its IPX7 waterproof capability.
7. Maintenance
7.1 Cleaning
Wipe the speaker with a soft, damp cloth. Do not use abrasive cleaners or solvents.
7.2 Storage
Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, charge the battery periodically to maintain its lifespan.
8. Troubleshooting
| Problem | Possible Solution |
|---|---|
| Speaker does not power on. | Ensure the battery is charged. Connect to a power source and try again. |
| Cannot pair with Bluetooth device. | Ensure the speaker is in pairing mode. Turn off and on your device's Bluetooth. Move speaker closer to the device. |
| No sound or low volume. | Increase volume on both the speaker and your connected device. Ensure the speaker is not muted. |
| TWS pairing fails. | Ensure both speakers are disconnected from other devices. Try resetting both speakers and repeat TWS pairing steps. |
9. Specifications
| Feature | Detail |
|---|---|
| Model | D127 |
| Bluetooth Version | 5.4 |
| Playtime | Up to 12 hours (at 50% volume) |
| Waterproof Rating | IPX7 |
| Dimensions (L x W x H) | 90 x 40 x 125 mm (approx. 4.8 x 6.4 x 2.4 cm) |
| Weight | Approximately 83g |
| Battery | 1 A battery (included) |
10. Warranty and Support
Monster products are designed and manufactured to the highest quality standards. For warranty information and customer support, please refer to the warranty card included with your purchase or visit the official Monster website. Keep your proof of purchase for warranty claims.





