1. Important Safety Instructions
Please read all instructions carefully before using this product and retain them for future reference. Adhere to all warnings and follow all instructions.
- Do not expose this product to extreme temperatures, direct sunlight, or open flames.
- Do not use this device near water or expose it to excessive moisture, despite its IPX6 rating. Avoid submerging the speaker.
- Only use the charging cable provided by the manufacturer.
- Do not attempt to disassemble, repair, or modify the speaker. Refer all servicing to qualified personnel.
- Keep the speaker away from children and pets.
- Avoid listening at high volume levels for extended periods to prevent hearing damage.
2. Package Contents
Verify that all items listed below are included in your package:
- Monster S380 Speaker
- USB-C Charging Cable
- AUX-in Cable
- Lifting Rope
- Quick Start Guide & Warning Card
Figure 2.1: Contents of the Monster S380 package.
3. Product Overview
3.1 Speaker Components
Figure 3.1: Front view of the Monster S380 Speaker.
Figure 3.2: Control buttons and their functions.
- Mode Switching (M): Press to cycle through input modes (Bluetooth, AUX, TF Card, USB).
- Play/Pause: Press to play or pause audio.
- Power On/Off: Press and hold to power the speaker on or off.
- Volume Down / Previous Song: Press for volume down; press and hold for previous song.
- Volume Up / Next Song: Press for volume up; press and hold for next song.
3.2 Key Features
- 30W Powerful Stereo Sound: Delivers clear highs and deep bass for an immersive audio experience.
- Bluetooth 5.4: Provides a stable and fast wireless connection up to 33 feet (10 meters).
- True Wireless Stereo (TWS) Pairing: Connect two S380 speakers for synchronized stereo sound.
- 20-Hour Playtime: Enjoy extended music playback on a single charge.
- IPX6 Water Resistant: Protected against strong jets of water, suitable for outdoor use and splashes.
- Built-in Microphone: Enables hands-free calling.
- Multiple Connectivity Options: Supports Bluetooth, AUX-in, TF Card, and USB playback.
- Portable Design: Features a lifting rope for easy carrying.
4. Setup
4.1 Charging the Speaker
Before first use, fully charge the speaker. Use the provided USB-C charging cable.
- Connect the USB-C end of the cable to the charging port on the speaker.
- Connect the USB-A end to a 5V/2A USB power adapter (not included).
- The charging indicator light will illuminate during charging and turn off when fully charged.
4.2 Powering On/Off
- To Power On: Press and hold the Power button for approximately 2-3 seconds until you hear an audible prompt.
- To Power Off: Press and hold the Power button for approximately 2-3 seconds until you hear an audible prompt.
4.3 Bluetooth Pairing
Pair your Monster S380 speaker with a Bluetooth-enabled device.
- Ensure the speaker is powered on and in Bluetooth mode. If not, press the Mode (M) button to switch to Bluetooth mode. The indicator light will flash, indicating it's ready for pairing.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Monster S380" from the list of devices.
- Once connected, the speaker will emit an audible confirmation, and the indicator light will remain solid.
Figure 4.1: Benefits of Bluetooth 5.4 connectivity.
4.4 True Wireless Stereo (TWS) Pairing
To achieve a more immersive stereo sound, you can pair two Monster S380 speakers together.
- Ensure both S380 speakers are powered on and not connected to any other Bluetooth device.
- On one of the speakers (this will be the primary speaker), press and hold the Play/Pause button for 2-3 seconds. The speaker will enter TWS pairing mode.
- The two speakers will automatically search for and connect to each other. Once connected, you will hear an audible confirmation.
- Now, connect your device to the primary speaker via Bluetooth as described in Section 4.3. Both speakers will play audio in stereo.
Figure 4.2: TWS connection for enhanced stereo sound.
4.5 Connecting via AUX/TF Card/USB
The Monster S380 offers multiple ways to play audio.
Figure 4.3: Multi-connectivity ports (USB, TF, AUX, Charging).
- AUX-in Mode: Connect an audio device using the provided 3.5mm AUX cable to the AUX port. The speaker will automatically switch to AUX mode or you can press the Mode (M) button.
- TF Card Mode: Insert a TF (MicroSD) card with audio files into the TF card slot. The speaker will automatically switch to TF card mode or you can press the Mode (M) button.
- USB Mode: Insert a USB flash drive with audio files into the USB port. The speaker will automatically switch to USB mode or you can press the Mode (M) button.
5. Operating Instructions
5.1 Basic Audio Controls
- Play/Pause: Press the Play/Pause button.
- Volume Up: Press the Volume Up (+) button.
- Volume Down: Press the Volume Down (-) button.
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
5.2 Hands-Free Calling
When connected via Bluetooth to a smartphone, the speaker's built-in microphone allows for hands-free calls.
- Answer Call: Press the Play/Pause button once.
- End Call: Press the Play/Pause button once during a call.
- Reject Call: Press and hold the Play/Pause button for 2 seconds.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place when not in use for extended periods. Avoid extreme temperatures.
- Battery Care: To prolong battery life, fully charge the speaker at least once every three months if not used regularly.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully using the provided USB-C cable. |
| Cannot pair via Bluetooth. | Speaker is not in pairing mode; device's Bluetooth is off; speaker is already connected to another device. | Ensure speaker is in Bluetooth pairing mode (flashing indicator). Turn off and on your device's Bluetooth. Disconnect speaker from other devices. |
| No sound. | Volume too low; incorrect input mode; cable not connected properly. | Increase volume on both speaker and connected device. Press 'M' button to select correct input mode. Check cable connections for AUX/TF/USB. |
| TWS pairing fails. | Speakers are too far apart; one speaker is already connected to a device. | Ensure speakers are within 1 meter of each other. Disconnect both speakers from any Bluetooth devices before initiating TWS pairing. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | Monster S380 |
| Item Model Number | MS62153 |
| Speaker Type | Portable Speaker |
| Speaker Maximum Output Power | 30 Watts |
| Audio Output Mode | Stereo |
| Bluetooth Version | 5.4 |
| Bluetooth Range | 33 Feet (10 meters) |
| Battery Capacity | 20 Hours Playtime |
| Water Resistance Level | IPX6 (Water Resistant) |
| Connectivity Technology | Bluetooth, AUX, TF Card, USB |
| Control Method | Touch Buttons |
| Product Dimensions | 2.9"D x 8.6"W x 3.5"H (7.4cm D x 21.8cm W x 8.9cm H) |
| Item Weight | 1.94 pounds (0.88 kg) |
| Material | Plastic |
9. Warranty and Support
The Monster S380 Portable Bluetooth Speaker comes with a limited warranty. Please refer to the 'Quick Start Guide & Warning Card' included in your package for specific warranty terms and conditions.
For technical support or customer service inquiries, please contact Monster customer support through their official website or the contact information provided in your product documentation.
