Introduction
Thank you for choosing the Monster M6 Portable Bluetooth Audio speaker. This manual provides essential information to help you set up, operate, and maintain your device. The Monster M6 is a versatile outdoor speaker featuring Bluetooth 5.4, dual 5W speakers for a total of 10W output, HD hands-free calling, FM radio, and multiple input options including TF card, USB, and AUX.
What's in the Box?
- Speaker x 1
- USB-C Charging Cable x 1
- Quick Guide x 1
- Warranty Card x 1
Product Overview

Figure 1: Monster M6 Portable Bluetooth Speaker, showcasing its compact design, control panel, and carrying strap.
Control Panel Functions
The top panel of your Monster M6 speaker features a series of buttons for easy control:
- Mode Switching: Short press to switch modes (Bluetooth, FM, USB, TF, AUX). Long press (3 seconds) to clear all paired Bluetooth device records.
- Lamp Effect Mode: Short press to switch between different light effects. Long press to turn off/on the light effect.
- Digital Song Selection Key: Use number keys (0-9) to directly select songs when in USB or TF card mode.
- Multi-functional Buttons: Short press for play/pause, answer/hang up calls. Long press to reject calls.
- Power On/Off: Long press to turn the speaker on or off.
- Recording: Short press to enter recording mode. Long press to enter/exit recording playback.
- Delete: Short press to delete the currently playing audio file.
- Display Screen: Shows current mode, battery status, track number, and FM frequency.
- Volume Down / Previous Song: Short press to decrease volume. Long press (2 seconds) for the previous song.
- Volume Up / Next Song: Short press to increase volume. Long press (2 seconds) for the next song.
Ports and Indicators

Figure 2: Side view of the Monster M6 speaker, showing the variety of input options including USB-C, USB, TF card slot, AUX, and earphone jack.
- Charging Indicator Light: Illuminates during charging and turns off when fully charged.
- USB-C Charging Interface: Connect the provided USB-C cable for charging.
- USB (Audio) Input Interface: Connect USB storage devices for audio playback.
- TF CARD Input Interface: Insert a TF (MicroSD) card for audio playback.
- AUX Input Interface: Connect external audio devices using a 3.5mm audio cable.
- Earphone Interface: Connect headphones for private listening.
Setup
Charging the Speaker
For the best experience, fully charge the speaker before first use. Connect the provided USB-C charging cable to the speaker's USB-C port (12) and to a 5V/1A or higher USB power adapter (not included). The charging indicator light (11) will be on during charging and turn off when the battery is full. Do not use incompatible or damaged charging cables.
Power On/Off
- To Power On: In the shutdown state, press and hold the Power On/Off button (5) for 2 seconds. You will hear a startup prompt sound.
- To Power Off: Press and hold the Power On/Off button (5) for 2 seconds. You will hear a shutdown prompt sound.
Note: If no Bluetooth device is connected after powering on, the speaker will automatically turn off after approximately 15 minutes to save power.
Bluetooth Pairing
When you turn on the Monster M6 for the first time, it will automatically enter Bluetooth pairing mode. If a Bluetooth device is not connected, it will re-enter pairing mode. To connect:
- Enable Bluetooth on your mobile phone or other device.
- Search for