EuroFone S3 Plus Motorcycle Helmet Bluetooth Intercom Headset 2K Video Recorder DVR User Manual

1. Product Introduction

Thank you for choosing the EuroFone S3 Plus Motorcycle Helmet Bluetooth Intercom Headset. This device is an all-in-one Bluetooth recorder designed for helmet use, offering high-definition video recording, Wi-Fi wireless transmission, and mobile phone connectivity. It allows you to listen to music, make phone calls, use FM radio, and quickly connect to external walkie-talkies or similar products to stay in touch with fellow riders. The S3 Plus also records your journeys with video and photography, enhancing your riding experience and bringing companions closer together.

2. Key Features

• 2K Ultra-Clear Camera: Records high-definition video of your rides.
• 135° Wide Angle Lens: Captures a broad field of view.
• Sony HD Wide-Angle Lens: Ensures high-quality imaging.
• Adjustable Lens Angle: Lens can be rotated 20 degrees counterclockwise for optimal positioning.
• Bluetooth 5.1 Connectivity: For stable connections with mobile phones and other devices.
• 6-Person Intercom System: Supports clear communication among up to 6 riders with an intercom distance of 1500-2000 meters.
• 2000mAh Superior Battery Performance: Offers up to 45 hours of intercom, 3 hours fast charging, 600 hours standby, and 100 hours music playback.
• Intelligent Noise Reduction Technology (CVC8.0): Provides clear voice communication and music experience even at speeds of 120 km/h.
• IP65 Level Waterproof and Dustproof: Designed to withstand harsh environments.
• Mobile APP Interconnection: Connects to a mobile app for enhanced functionality.
• Built-in FM Radio: For entertainment on the go.
• Emergency Video Auto-lock: Automatically locks important video footage.
• Voice Control: Supports voice commands (Chinese support).
• Anti-Shake: Intelligent anti-shake feature for stable video recording.

3. Package Contents

The EuroFone S3 Plus package includes the following items:

Image: Package contents of the S3 Plus

• S3 Plus Main Unit
• Headset & Microphone
• Installing Clips
• Velcro (X6)
• Screwdrivers and Spare Screws
• USB Charging Cable (Type-C)
• Instruction Manuals
• Gift Box

4. Product Overview (Buttons and Ports)

Familiarize yourself with the buttons and ports on your S3 Plus device:

Image: S3 Plus Button and Port Diagram

• 1. Camera Lens: Records video footage.
• 2. Intercom Key: Used for intercom functions.
• 3. TF Card/Reset Button: Slot for memory card and reset function.
• 4. WIFI/Photo Button: Activates Wi-Fi and takes photos.
• 5. Knob Key: Multi-functional rotary control.
• 6. Bluetooth Power On/Off Button: Controls Bluetooth power.
• 7. Multifunctional Key: Performs various functions depending on context.
• 8. Charging Jack / K Line Interface: For charging and external connections.
• 9. Headset Socket: Connects the headset.

5. Installation Instructions

5.1 Clamp Installation

Attach the S3 Plus to your helmet using the provided clamp:

Image: Clamp Installation Diagram

5.2 Velcro Clip Installation

Alternatively, use the Velcro clip for installation:

1. Clean the helmet surface where the Velcro will be applied.
2. Apply the Velcro to the helmet.
3. Fix the S3 Plus Bluetooth host to the helmet using the Velcro.

5.3 Memory Card Installation

To install the memory card (not included):

Image: Memory Card Installation and Lens Rotation

1. Remove the waterproof plug from the memory card slot.
2. Insert a Class 10 or higher speed memory card (up to 512GB capacity) into the slot as shown in the diagram.
3. Cover the slot with the waterproof plug.
4. The camera lens can be rotated 20 degrees counterclockwise for adjustment.

6. Operating Instructions

6.1 Recorder Power On/Off

• To Turn On: When the recorder is off, press and hold the Recorder Switch Key/Video Key for 3 seconds. You will hear "Welcome to S3 Plus event data recorder".
• To Turn Off: When the recorder is on, press and hold the Recorder Switch Key/Video Key for 3 seconds. You will hear "The recorder is off".

6.2 Video Recording On/Off

• To Turn On Video: When the recorder is on, short press the Recorder Switch Key/Video Key. The green light will turn on, and you will hear "The video is on".
• To Turn Off Video: While recording, short press the Recorder Switch Key/Video Key. You will hear "Video is over". If no memory card is inserted, you will hear "Insert memory card please" during recording.

6.3 Taking Photos and Video Locks

• To Take a Photo: While the recorder is recording, short press the WIFI/Photo Button. You will hear a "Shutter sound".
• To Lock Video: While recording, double-click the Recorder Switch Key/Video Key. You will hear a "Tone" sound.

6.4 Wi-Fi On/Off

• To Turn On Wi-Fi: When the recorder is on, press and hold the WIFI/Photo Button for 3 seconds. The green light will flash, and you will hear "Turn on Wi-Fi".
• To Turn Off Wi-Fi: When Wi-Fi is on, press and hold the WIFI/Photo Button for 3 seconds. You will hear "Turn off Wi-Fi".

6.5 Voice Control (Chinese Support)

When the recorder is on, you can use the following voice commands (Chinese only): "Turn on recording", "Turn off recording", "Turn on Hotspot", "Turn off Hotspot", "I want to take a picture", "I want to record", and "Video lock".

6.6 Recorder Voice Switch

To switch the recorder's voice, simultaneously press and hold the Recorder Switch Key/Video Key and the WIFI/Photo Button for 5 seconds while the recorder is on.

6.7 Connecting to the Mobile App

You can connect your S3 Plus to the mobile app for additional features. The Wi-Fi name is "S3 Plus DVR" and the default password is "12345678".

Image: Roadcam App QR Code

Download the Roadcam app by scanning the QR code for iOS and Android devices.

6.8 Connecting to a Computer

Connect the S3 Plus to your computer using the provided Type-C USB cable to play videos and view pictures directly.

6.9 Bluetooth Power On/Off

• To Turn On Bluetooth: When Bluetooth is off, press and hold the Bluetooth Power On/Off Button for 3 seconds. You will hear a boot sound.
• To Turn Off Bluetooth: When Bluetooth is on, press and hold the Bluetooth Power On/Off Button for 5 seconds. You will hear a shutdown sound.

6.10 Bluetooth Factory Reset

To restore Bluetooth to factory settings, press and hold the Bluetooth Power On/Off Button for 7 seconds. The red light will flash quickly for playback (if you press for 3 seconds, the red light turns on; continue holding for 4 more seconds).

6.11 Bluetooth Voice Switch

After Bluetooth is turned on, press and hold the Bluetooth Power On/Off Button and turn the Rotary Knob clockwise to switch the voice.

6.12 Bluetooth Connection to Mobile Phone

When pairing with a mobile phone, ensure the phone is within 1 meter of the S3 Plus.

• Initial Pairing (from off state): Press and hold the Bluetooth Power On/Off Button for 5 seconds. You will hear "Bluetooth pairing", and the indicator light will flash red and blue quickly.
• Initial Pairing (from on state): Press and hold the Bluetooth Power On/Off Button and the Multifunctional Key for 2 seconds. You will hear "Bluetooth pairing", and the indicator light will flash red and blue quickly. (Note: You need to hang up any active intercom call to enter Bluetooth mode).
• Mobile Phone Reconnection: If the mobile phone disconnects from the headset, short press the Multifunctional Key to reconnect to the previously paired mobile phone.

6.13 Pairing of Two Devices

The S3 Plus supports pairing with another S3 Plus device for various functions:

• Friendship Mode:
  1. Switch the other Bluetooth device to pairing state. On your S3 Plus (when on), click the Intercom Key to switch to "Bluetooth Friendship Mode".
  2. In "Bluetooth Friendship Mode", press and hold the Intercom Key to enter pairing mode (blue light flashes fast).
  3. Short press the Intercom Key to pair the intercom. If successful, you can directly enter voice intercom.
• Music Sharing:
  1. On both devices (when on), click the Intercom Key to switch to "Music Sharing".
  2. Press and hold the Intercom Key on both devices in "Music Sharing" mode to enter pairing mode (blue light flashes quickly).
  3. Click the Intercom Key on one of the devices (the sharer) to search for intercom pairing. After successful pairing, you can share music.
• Bluetooth Intercom Mode:
  1. On both devices (when on), click the Intercom Key to switch to "Bluetooth Intercom Mode".
  2. In "Bluetooth Intercom Mode", press and hold the Intercom Key on both devices to enter pairing mode (blue light flashes quickly).
  3. Click the Intercom Key on one device to search and pair the intercom. After successful pairing, you can intercom. (It takes a short time to turn on again; press the Power Button once to talk).
• Power Off Memory: If two paired devices are turned off and then on again, short press the Power Button to reconnect the intercom.
• Manual Disconnection/Reconnection: When two devices are connected, click the Power Button to disconnect. Click it again to restore the connection.
• Volume Adjustment: Rotate the Rotary Knob clockwise and hold for Volume+; rotate it counter-clockwise and hold for Volume-.

6.14 Group Intercom Pairing (Up to 6 Riders)

The S3 Plus supports group intercom for up to 6 riders (1500-2000m range).

1. Step 1: With all 6 devices turned on, click the Intercom Key on each device to switch to "Bluetooth Group Intercom Mode".
2. Step 2: In "Bluetooth Group Intercom Mode", press and hold the Power Button on each device for 5-7 seconds. Each device will enter "searching state" and the blue light will flash quickly.
3. Step 3: In "blue light flashing search status", select one device (Unit A) and click its Intercom Key. Unit A will enter "intercom search mode" and automatically connect to Unit B, indicated by a "di" sound. This process will cascade, with Unit B connecting to Unit C, Unit C to Unit D, Unit D to Unit E, and Unit E to Unit F. Each successful connection will be indicated by a "di" sound. Unit F will also enter "intercom search mode" after connecting (wait for 2 seconds).
4. Step 4: After waiting for 2 seconds, short press the Power On Button on each device once. You will hear a "beep" sound, indicating the group network is ready.
5. Step 5: Once the network preparation is complete, short press the Power Button on each device to hear "ding dong" and enter the group chat voice intercom.
6. Shutdown Memory: If some devices shut down and turn on again in multi-person intercom mode, they need to press the Power Button once and hear a "ding dong" sound to reconnect to the intercom before entering group intercom.
7. Manual Disconnection/Reconnection: To disconnect group talk, double-click the Power On Key. Click it again to re-enter group talk.
8. Volume Adjustment: Rotate the Rotary Knob clockwise and hold for Volume+; rotate it counter-clockwise and hold for Volume-.
9. Voice Number Report: When group intercom is connected, short press the Power Button and the Multifunctional Key simultaneously.

6.15 FM Radio Function

• FM On/Off: Double-click the Multifunctional Key to enter FM automatic search (if no audio). Double-click again to exit FM mode.
• Station Switching: Rotate the Rotary Knob clockwise once for the previous station; rotate it counter-clockwise once for the next station.
• Volume Adjustment: Rotate the Rotary Knob clockwise and hold for Volume+; rotate it counter-clockwise and hold for Volume-.
• Music/FM Switch: In FM mode, click the Multifunctional Key to switch to music playback. Click again to pause music. After 10 seconds, it will return to FM mode.

6.16 Stereo Music

• Play/Pause: Short press the Multifunctional Key to play or pause music.
• Next Song: While music is playing, turn the Rotary Knob clockwise for 2 seconds and release.
• Previous Song: While music is playing, turn the Rotary Knob counter-clockwise for 2 seconds and release.

6.17 Telephone Functions

• Answering a Call: When an incoming call comes, click the Multifunctional Key to answer.
• Automatic Answering: Bluetooth will automatically answer incoming calls after 10 seconds (the incoming call ringtone will be superimposed).
• Rejecting a Call: When an incoming call comes, press and hold the Multifunctional Key for 1 second to reject it.
• Hanging Up a Call: During a call, click the Multifunctional Key to hang up.
• Last Number Redial: In standby mode, double-click the Power On Button.
• Automatic Answering On/Off:
  • To Turn On: If the device is not connected to a mobile phone via Bluetooth, press and hold the Multifunctional Key for 2 seconds. The blue light will flash 3 times. (Setting will be saved for next boot).
  • To Turn Off: If the device is not connected to a mobile phone via Bluetooth, press and hold the Multifunctional Key for 2 seconds. The red light will flash 3 times. (Setting will be saved for next boot).
• Volume Adjustment: Rotate the Rotary Knob clockwise for Volume+; rotate it counter-clockwise for Volume-.

6.18 Feature Priority

The S3 Plus prioritizes functions as follows:

1. Level 1: Answer the phone
2. Level 2: Group intercom / Bluetooth intercom
3. Level 3: Mobile Music
4. Level 4: Music Sharing
5. Level 5: FM Radio

Note: The pairing sequence is to pair the intercom first and then the mobile phone.

7. Troubleshooting (Indicator Status and Voice Prompts)

The S3 Plus provides various indicator lights and voice prompts to help you understand its status:

• Power On/Off: Green light turns on and off for 3 seconds. In standby, the green light flashes once every 10 seconds.
• Low Battery Reminder: The recorder will prompt "The recorder is low, please charge" every 120 seconds when the battery is low.
• Power Level Indication: Upon power-on, the recorder will prompt "the recorder is fully charged", "the recorder's power is medium", or "the recorder's power is low, please charge it" based on the current power level.
• Connected to Computer/Recording: When connected to a computer and in recording mode, the green light is always on. If Wi-Fi is turned on, the green light flashes quickly.
• Bluetooth Status: Blue light is on for 2 seconds when Bluetooth is turned on. Red light is on for 2 seconds when off. Blue light flashes once every 10 seconds in standby.
• Bluetooth Low Battery: A "low battery, please charge" sound will be reported every 120 seconds.
• Bluetooth Power Prompt: When Bluetooth is on, power is prompted as "100%~20%" or "battery is low, please charge".
• Charging Status: Red light is always on during charging. Blue light is on for 10 seconds after charging is complete.

8. Product Specifications

*Operating hours vary by phone type and usage. Actual hours may vary.

*Working distance may vary due to factors such as environment and climate.

9. Maintenance and Notes

• Storage Temperature: The applicable storage temperature for this product is 0°C to 40°C. Do not store it in environments with excessively high or low temperatures, as this will affect the product's service life.
• Avoid Open Flames: Do not expose this product to open flames to prevent explosions.
• Long-Term Storage: If the product is not used for a long time, store it in a dry place and charge it regularly (once every three months) to ensure normal operation.

10. Warranty and Support

For detailed warranty information, additional support, or to view the complete user manual, please refer to the official PDF document:

View User Manual (PDF)

The manufacturer provides a 365-day free replacement policy for this product.