Introduction
The Cellularline Bluetooth MAG Speaker (Model BTSPKMAGK) is a portable wireless speaker designed for audio playback from compatible devices. It features magnetic attachment capabilities and True Wireless Stereo (TWS) functionality, allowing two MAG speakers to connect for an enhanced stereo sound experience.
Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from water and liquids, despite its waterproof rating, to prevent damage to the charging port.
- Use only the provided USB-C cable for charging.
- Do not attempt to disassemble or modify the speaker.
Package Contents
- Cellularline Bluetooth MAG Speaker
- USB-C Charging Cable
- User Manual
Product Overview
The MAG Speaker features a compact design with a fabric-covered speaker grille and a magnetic base. It includes a USB-C charging port and an indicator light for status updates.

Image: The MAG Speaker magnetically attached to a smartphone, demonstrating its stand function.
Setup
1. Charging the Speaker
- Connect the provided USB-C cable to the speaker's charging port.
- Connect the other end of the USB-C cable to a compatible USB power adapter (not included).
- The indicator light will show charging status (e.g., red for charging, off or green for fully charged).
2. Powering On/Off
- To power on, press and hold the power button until the indicator light illuminates.
- To power off, press and hold the power button until the indicator light turns off.
3. Bluetooth Pairing
- Ensure the speaker is powered on and in pairing mode (indicator light may flash).
- On your smartphone, tablet, or laptop, enable Bluetooth.
- Search for available Bluetooth devices and select "Cellularline MAG Speaker" from the list.
- Once connected, the indicator light will change (e.g., solid blue), and a confirmation sound may play.
Operating
1. Playing Audio
After successful Bluetooth pairing, play audio from your connected device. The speaker will output the sound. Volume control is managed directly from your connected device.
2. True Wireless Stereo (TWS) Function
To achieve a stereo sound experience, you can connect two Cellularline MAG Speakers together:
- Ensure both MAG speakers are powered on and not connected to any other Bluetooth device.
- On one speaker, press and hold the TWS button (if available, or follow specific instructions in the included manual for TWS pairing).
- The speakers will attempt to pair with each other. Once connected, one speaker will act as the master (left channel) and the other as the slave (right channel).
- Now, connect your device to the master speaker via Bluetooth as described in the 'Bluetooth Pairing' section.

Image: Two MAG Speakers set up for True Wireless Stereo (TWS) playback with a smartphone.
3. Magnetic Attachment
The MAG Speaker features a magnetic base for convenient attachment:
- Attach the speaker to compatible devices such as iPhone 12 and newer models, or other smartphones with magnetic backs.
- It can also be attached to various magnetic surfaces for versatile placement.

Image: The MAG Speaker magnetically secured to a metallic surface.
Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store the speaker in a cool, dry place when not in use.
- Ensure the charging port is free of dust and debris.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker using the provided USB-C cable. |
| Cannot pair with Bluetooth device. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is in pairing mode. Turn Bluetooth on your device. Move device closer to speaker. |
| No sound during playback. | Volume too low; device not connected; incorrect audio output. | Increase volume on both speaker and device. Reconnect Bluetooth. Check device audio output settings. |
| TWS pairing fails. | Speakers already paired to another device; too far apart. | Ensure both speakers are disconnected from other devices. Place speakers close together during TWS pairing. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Cellularline |
| Model Name | BTSPKMAGK |
| Connectivity Technology | Bluetooth |
| Wireless Communication Technology | Bluetooth |
| Speaker Output Power | 3 Watts |
| Audio Output Mode | Stereo (with TWS) |
| Playback Time | Up to 12 hours |
| Special Features | Magnetic attachment, TWS function |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Color | Black |
| Product Dimensions (L x W x H) | 6 x 6 x 4 cm |
| Weight | 140 grams |
| Power Source | Cable Electric (USB-C) |
| Battery | 1 Lithium-polymer (included) |
| Waterproof | Yes |
Warranty
This product comes with a limited warranty. Please refer to the specific warranty terms provided with your purchase or visit the official Cellularline website for detailed information regarding warranty coverage and duration.
Support
For further assistance, technical support, or to view frequently asked questions, please visit the official Cellularline website or contact their customer service department. Contact information can typically be found on the manufacturer's website or in the product packaging.





