Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Monster S320 Portable Bluetooth Speaker. Please read this manual thoroughly before using the device to ensure proper function and to maximize your listening experience.
Important 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. This will void the warranty.
- Keep the speaker away from medical devices.
- Use only the provided charging cable or a certified equivalent.
- Ensure the charging port cover is securely closed when the speaker is exposed to water to maintain its IPX7 rating.
Package Contents
Verify that all items are present in your package:
- 1 x Monster S320 Portable Bluetooth Speaker
- 1 x USB-C Charging Cable
- 1 x Quick Start Guide (This document serves as a comprehensive guide)
Product Overview
The Monster S320 is a portable Bluetooth speaker designed for high-quality audio output with a 360° stereo sound effect. It features IPX7 waterproofing, True Wireless Stereo (TWS) pairing capability, and a long-lasting battery.
Speaker Components and Controls
Familiarize yourself with the speaker's buttons and ports:
- Power Button: Press and hold to turn the speaker on or off.
- Volume Up (+): Increase volume.
- Volume Down (-): Decrease volume.
- Play/Pause Button: Play or pause audio. Answer or end calls.
- Bluetooth Pairing Button: Initiate Bluetooth pairing mode.
- AUX-in Port: For wired audio connection.
- USB-C Charging Port: For charging the speaker.
Image: Top view of the Monster S320 speaker highlighting its control buttons and the Monster logo.
Setup
1. Charging the Speaker
- Open the protective cover on the side of the speaker to access the USB-C charging port.
- Connect the provided USB-C cable to the speaker's charging port.
- Connect the other end of the USB-C cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. It will turn off or change color once fully charged.
- Close the protective cover securely after charging to maintain water resistance.
Image: Close-up of the Monster S320 speaker's side panel, showing the AUX and USB-C charging ports with cables connected.
2. Powering On/Off
- To Power On: Press and hold the Power button for approximately 2-3 seconds until you hear an audible prompt and the indicator light illuminates.
- To Power Off: Press and hold the Power button for approximately 2-3 seconds until you hear an audible prompt and the indicator light turns off.
3. Bluetooth Pairing (Single Speaker)
- Ensure the speaker is powered on and within 1 meter of your Bluetooth device.
- The speaker will automatically enter Bluetooth pairing mode, indicated by a flashing blue LED light. If not, press the Bluetooth button.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Monster S320" from the list of found devices.
- Once paired, the LED indicator will turn solid blue, and you will hear a confirmation tone.
4. True Wireless Stereo (TWS) Pairing (Two Speakers)
TWS allows two Monster S320 speakers to connect wirelessly for an enhanced stereo sound experience.
- Ensure both Monster S320 speakers are powered on and not connected to any other Bluetooth device.
- On one speaker (this will be the primary speaker), press and hold the Bluetooth button for approximately 3 seconds until you hear a TWS pairing prompt. The indicator light will flash.
- The primary speaker will automatically search for the second speaker.
- Once connected, both speakers will emit a confirmation tone, and their indicator lights will synchronize.
- Now, connect your Bluetooth device to the primary speaker as described in "Bluetooth Pairing (Single Speaker)".
Image: Two Monster S320 speakers positioned for True Wireless Stereo pairing, with a smartphone in between.
5. AUX-in Connection
For devices without Bluetooth, use the AUX-in port:
- Open the protective cover on the side of the speaker.
- Connect a 3.5mm audio cable (not included) from your audio source to the speaker's AUX-in port.
- The speaker will automatically switch to AUX mode.
- Control playback and volume from your audio source.
Operating Instructions
Music Playback
- Play/Pause: Press the Play/Pause button once.
- Volume Up: Press the '+' button. Hold to continuously increase volume.
- Volume Down: Press the '-' button. Hold to continuously decrease volume.
- Next Track: Long press the '+' button.
- Previous Track: Long press the '-' button.
Phone Calls
The Monster S320 has a built-in microphone for hands-free calling when connected via Bluetooth.
- 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.
- Redial Last Number: Double-press the Play/Pause button.
Image: Monster S320 speaker next to a smartphone displaying an incoming call, illustrating hands-free call functionality.
Maintenance
- Cleaning: Wipe the speaker with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Water Resistance: Ensure the charging port cover is fully sealed when using the speaker near water or in wet conditions. After exposure to water, dry the speaker thoroughly before charging.
- 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 to approximately 50% every few months to prolong battery life.
Image: Monster S320 speaker with water splashing on it, illustrating its IPX7 waterproof feature.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from device; previously paired device interfering. | Ensure speaker is in pairing mode (flashing blue LED). Turn Bluetooth off/on on your device. Move speaker closer. Disconnect from other devices. |
| No sound or low volume. | Volume too low on speaker or device; incorrect audio source selected; speaker muted. | Increase volume on both speaker and connected device. Ensure correct input (Bluetooth/AUX) is active. Check if speaker is muted. |
| TWS pairing fails. | Speakers too far apart; one speaker already paired to a device; incorrect pairing procedure. | Ensure both speakers are close and not connected to other devices. Follow TWS pairing steps carefully. |
| Short battery life. | High volume usage; aging battery; incomplete charging. | Battery life is reduced at higher volumes. Ensure speaker is fully charged. Battery performance may degrade over time. |
Specifications
- Model: S320
- Brand: Monster
- Speaker Maximum Output Power: 40 Watts
- Connectivity Technology: Bluetooth 5.0
- Audio Output Mode: Stereo (360° Sound Effect)
- True Wireless Stereo (TWS): Yes (up to 80W combined output)
- Water Resistance: IPX7 (Waterproof)
- Battery Average Life: Up to 32 Hours (at medium volume)
- Charging Port: USB-C
- Additional Features: Built-in Microphone, AUX-in Port
- Product Dimensions: 13.46 x 5.08 x 12.7 cm
- Item Weight: 712 g
- Material: Fabric or Plastic
- Control Method: Touch
- Bluetooth Range: Up to 10 Meters (33 feet)
Warranty Information
The Monster S320 Portable Bluetooth Speaker comes with a limited warranty. Please refer to the warranty card included in your original packaging or visit the official Monster website for detailed terms and conditions. This warranty typically covers manufacturing defects and material faults under normal use.
Customer Support
For technical assistance, warranty claims, or general inquiries, please contact Monster customer support through their official website or the contact information provided in your product documentation. When contacting support, please have your product model number (S320) and purchase details ready.
Online Support: Visit the official Monster website for FAQs, support articles, and contact forms.