Introduction
This manual provides comprehensive instructions for the Monster S180 Bluetooth Speaker. Learn how to set up, operate, maintain, and troubleshoot your device to ensure optimal performance. The Monster S180 is a 40W portable speaker featuring Bluetooth 6.0 connectivity, IPX6 waterproofing, and up to 28 hours of playtime, designed for high-fidelity audio in various environments.

Image: Front view of the Monster S180 Bluetooth Speaker.
What's in the Box
Verify that all items are present in the package:
- Monster S180 Bluetooth Speaker × 1
- Charging Cable × 1
- Quick Start Guide × 1

Image: The Monster S180 speaker, charging cable, and quick start guide included in the package.
Product Overview
Controls and Indicators

Image: Top view of the Monster S180 speaker showing button functions.
- Power On/Off Button: Press to turn the speaker on or off.
- Mode Switch Button: Cycles through input modes (Bluetooth, AUX, TF Card).
- Previous Song / Volume Down Button: Short press for volume down, long press for previous song.
- Next Song / Volume Up Button: Short press for volume up, long press for next song.
- Play/Pause Button: Short press to play or pause music. Double click to enter/exit True Wireless Stereo (TWS) mode.
Ports

Image: Side view of the Monster S180 speaker showing connectivity ports.
- USB-C Charging Port: For charging the speaker's internal battery.
- AUX Input Port: For connecting external audio devices via a 3.5mm audio cable.
- TF Card Slot: For playing music directly from a TF (microSD) card.
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C charging cable to the speaker's charging port and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will show charging status and turn off when fully charged.
2. Powering On/Off
Press and hold the Power On/Off button for approximately 2-3 seconds to turn the speaker on or off. A sound prompt will indicate the power status.
3. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode. If not, press the Mode Switch button until the Bluetooth indicator light flashes, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Monster S180" from the list of found devices.
- Once paired, the Bluetooth indicator light will stop flashing and remain solid, and a sound prompt will confirm the connection.

Image: The Monster S180 speaker shown connected to a mobile device via Bluetooth.
4. True Wireless Stereo (TWS) Pairing
To achieve a wider stereo soundstage, you can pair two Monster S180 speakers together:
- Ensure both Monster S180 speakers are powered on and not connected to any Bluetooth device.
- On one of the speakers, double-click the Play/Pause button. The speaker will enter TWS pairing mode, indicated by a specific sound or light pattern.
- The two speakers will automatically search for and connect to each other. Once connected, a sound prompt will confirm TWS pairing.
- Now, connect your device to one of the paired speakers via Bluetooth as described in step 3. Both speakers will play audio in synchronized stereo.

Image: Two Monster S180 speakers demonstrating True Wireless Stereo (TWS) pairing.
Operating Instructions
Basic Playback Controls
- Play/Pause: Short press the Play/Pause button.
- Volume Up: Short press the Volume Up (+) button.
- Volume Down: Short press the Volume Down (-) button.
- Next Track: Long press the Volume Up (+) button.
- Previous Track: Long press the Volume Down (-) button.
AUX Input Mode
Connect an external audio device (e.g., MP3 player, computer) to the speaker's AUX input port using a 3.5mm audio cable. The speaker will automatically switch to AUX mode, or you can manually select it by pressing the Mode Switch button.
TF Card Playback Mode
Insert a TF (microSD) card containing audio files into the TF card slot. The speaker will automatically switch to TF card mode and begin playing music, or you can manually select it by pressing the Mode Switch button.
Hands-Free Calling
When connected to a smartphone via Bluetooth, the speaker can be used for hands-free calls. Incoming calls will pause music playback. Press the Play/Pause button to answer or end a call. Long press the Play/Pause button to reject an incoming call.
Maintenance
IPX6 Waterproofing
The Monster S180 speaker features an IPX6 waterproof rating, meaning it is protected against high-pressure water jets from any direction. This makes it suitable for use in environments where it may be exposed to splashes, rain, or accidental spills. Note: IPX6 rating does not mean the speaker can be submerged in water for extended periods. Ensure all port covers are securely closed before exposing the speaker to water.

Image: The Monster S180 speaker in a wet environment, highlighting its IPX6 waterproof design.
Cleaning
Wipe the speaker with a soft, damp cloth. Do not use abrasive cleaners, alcohol, or chemical solvents, as these may damage the surface or internal components.
Battery Care
The speaker is equipped with a high-capacity battery providing up to 28 hours of playtime. To prolong battery life, avoid fully discharging the battery frequently and store the speaker in a cool, dry place when not in use for extended periods. Recharge the battery at least once every three months if unused.

Image: Visual representation of the Monster S180 speaker's 28-hour battery life.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker using the provided USB-C cable. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is in pairing mode (flashing indicator). Turn on Bluetooth on your device. Move device closer to speaker (within 20 meters). Forget "Monster S180" on your device and try pairing again. |
| No sound. | Volume too low; incorrect input mode; device not playing. | Increase speaker and device volume. Press Mode Switch to select correct input (Bluetooth, AUX, TF). Ensure audio is playing on the connected device. |
| Sound distortion. | Volume too high; low battery; poor signal. | Reduce volume on speaker and device. Charge the speaker. Move closer to the Bluetooth source or check AUX/TF card for issues. |
| TWS pairing fails. | Speakers already connected to another device; incorrect pairing procedure. | Ensure both speakers are disconnected from other devices. Follow TWS pairing steps precisely (double-click Play/Pause on one speaker). |
Specifications
| Feature | Detail |
|---|---|
| Model Name | S180 (MS62117) |
| Brand | Monster |
| Speaker Type | Portable Speaker |
| Audio Output Mode | Stereo |
| Power Output | 40W |
| Wireless Technology | Bluetooth 6.0 |
| Connectivity Options | Bluetooth, AUX, TF Card |
| Maximum Range | 20 Meters |
| Playtime | Up to 28 hours |
| Waterproof Rating | IPX6 |
| Control Method | Push Button |
| Speaker Size | 52 Millimeters (Subwoofer diameter) |
| Product Dimensions | 7.5D x 19.5W x 10.1H Centimetres |
| Weight | 690 g |
| Material | Plastic |
| Included Components | Monster S180 Bluetooth Speaker ×1, Charging Cable ×1, Quick Start Guide ×1 |
Warranty and Support
The Monster S180 Bluetooth Speaker comes with a Limited Warranty. For specific warranty terms and conditions, please refer to the Quick Start Guide included in your package or visit the official Monster website.
For technical support, troubleshooting assistance, or service inquiries, please contact Monster customer support through their official channels. Keep your purchase receipt and product model number (S180 / MS62117) handy when contacting support.





