USER MANUAL

Product Details

Antenna: Located at the top of the device.

Indicator: Shows device status.

A Button: Used for various functions, including pairing and intercom control.

B Button: Used for various functions, including pairing and intercom control.

Volume + Button: Increases volume.

Volume - Button: Decreases volume.

FM Button: Controls FM radio functions.

Phone/Power Button: Used for power on/off, answering/rejecting calls, and voice assistant activation.

3.5mm Round hole charging/Earphone interface: Port for charging and connecting earphones.

Product Installation

1. Loosen the screws of the clip and install it on your helmet for fixing.
2. Install the intercom on the clip.
3. Use the Velcro stick inside your helmet. Choose the stick / soft mic for your need.
4. Organize the inside messy cables and put them inside your helmet foam for easy wearing.

Product Operations

Operation Diagram

Click: A single press of a button.

Double Click: Pressing a button twice in quick succession.

Long Press for 5s: Pressing and holding a button for 5 seconds.

Long Press Simultaneously for 5s: Pressing and holding multiple buttons simultaneously for 5 seconds.

Basic Operations

Power ON/OFF

Please charge before using.

ON: Prompt tone. Standby: Blue light flashes slowly.

OFF: Lights off.

Battery Level

Check battery level via Bluetooth connection on your phone or by long pressing the Volume + and FM buttons simultaneously for 3 seconds. The device will announce the battery level: "Battery Level High", "Battery Level Medium", or "Battery Level Low".

Low Battery Indication

Red light double flashes quickly. Announces "Low Battery".

Charging Indication

Charging: Red light is on.

Full: Red light is off.

Volume Control

FM and intercom can be used at the same time. Use Volume + and Volume - buttons to adjust volume.

Intercom / Calling / Music / FM

Intercom & FM use simultaneously, FM volume control: Use Volume + and Volume - buttons to adjust FM volume.

Factory Reset

Long press the <Volume +>, <Volume ->, and <Phone Button> for 5s at the same time. The red and blue lights quickly flash three times simultaneously. Announces "Restore Default Settings".

Bluetooth Intercom

2-Way Intercom Pairing

1. Long press both <A Button> of device 1 and <B Button> of device 2 for 5s, waiting to pair. Red and blue lights flash alternately.
2. Searching and paring.
3. Paring successfully.

Connected, start communication.

3-Way Intercom Pairing

1. Pair device 1 and device 2 as above one step.
2. Long press both <A Button> of device 2 and <B Button> of device 3 for 5s, waiting to pair. Red and blue lights flash alternately.
3. Searching and paring.
4. Paring successfully.
5. Click <A Button> of device 1. (Blue light flashes once + stays on for 2s) and cycle.

Connected, start communication.

4-Way Intercom Pairing

1. Device 1, device 2, and device 3 are paired as above two steps.
2. Long press both <A Button> of device 3 and <B Button> of device 4 for 5s, waiting to pair. Red and blue lights flash alternately.
3. Searching and paring.
4. Paring successfully.
5. Click both <A Button> of device 1 and device 2.
6. Device 1: {Blue light flashes once + stays on for 2s} and cycle.
7. Device 2: {Blue light flashes twice + stays on for 2s} and cycle.

Connected, start communication.

Intercom Reconnection

Reconnect after disconnection or boot.

To connect device 3, click <A Button> of device 2.

To connect device 1, click <B Button> of device 2.

Device 1 & device 2 (or device 2 & device 3) connection is successful. {Blue light flashes once + stays on for 2s} and cycle.

Device 1 & device 2 & device 3 simultaneously connected. {Blue light flashes twice + stays on for 2s} and cycle.

Intercom Disconnection

Press and hold the 'A' button for 1 second to disconnect.

Press and hold the 'B' button for 1 second to disconnect.

Compatible with Old Intercom Pairing

Pairing with V4 Plus

1. Long press both < Volume -> and <A Button> of V4 Plus for 5s, while long press <B Button> of V4 for 3s. Red and blue lights flash alternately.
2. Paring successfully.
3. Click <A Button> of V4 Plus.

1. Long press both < Volume -> and <B Button> of V4 Plus for 5s, while long press <A Button> of V4 for 3s. Red and blue lights flash alternately.
2. Paring successfully.
3. Click <A Button> of V4. Blue light flashes.
4. Click <B Button> of V4 Plus.

Bluetooth Pairing

Pairing of Bluetooth HFP-AG

1. Long press both <Volume +> and <A Button> of V4 Plus simultaneously for 5s. Red and blue lights flash alternately.
2. Other devices enter Bluetooth search mode.
3. Click <A Button> of V4 Plus to connect.

Pairing of Bluetooth HFP-HF

1. Long press both <Volume +> and <B Button> of V4 Plus simultaneously for 5s. Red and blue lights flash alternately.
2. Other devices enter Bluetooth search mode.
3. Click <B Button> of V4 Plus to connect.

Phone Pairing

Phone Pairing

1. In standby mode, long press the <Phone Button> for 5s to enter the pairing state. Red and blue lights flash alternately. "Phone Pairing".
2. Turn on the Bluetooth of the mobile phone and click on the device.

Pairing successful. Blue light twice flashes slowly. "Pairing Successful".

Current power will be shown on your phone. (the mobile phone needs to support HFP)

Phone Reconnection

Automatically connect back to the last paired device.

Mobile Phone

Answer a Call

Auto answering within 8s if no any operation.

Reject a Call

Long press the Phone button for 2 seconds.

Last Call Replay

Double click the Phone button.

End a Call

Click the Phone button once.

TEL Priority

When listening to music/FM/intercom, and receiving a phone call:

• Interrupt: Music, FM, and intercom are interrupted during a call.
• Restore: Music, FM, and intercom are restored after the call is hung up.

Voice Assistant

Phone must support the voice assistant (Google assistant & Siri).

1. Turn on voice assistant.
2. Long press the <Phone Button> for 1s.

Music Control

Music Play/Pause

Click the Phone button to play or pause music.

Music Switching

Next Track: Double click the Phone button.

Previous Track: Triple click the Phone button.

FM Radio

FM On/Off (76~108MHz)

Auto search and radio, intercom and radio could work at the same time.

To open FM: Long press <FM Button> for 1s. Blue light is always on for 4s. Announces "FM radio".

To close FM: Long press <FM Button> for 1s. Announces "FM radio off".

Frequency Switching

Frequency -: Double click the FM button.

Frequency +: Double click the FM button.

EUC Remote Control (Optional)

EUC Details

FM Button: Controls FM functions.

Useless Button: No function assigned.

B Button: Controls various functions.

A Button: Controls various functions.

Volume +: Increases volume.

Phone: Controls phone functions.

Volume -: Decreases volume.

EUC Pairing

1. Long press both <FM Button> and <Volume -> of EUC for 5s to clear the pairing record of EUC. Red and Blue lights consistently on.
2. Long press both <Phone Button> and <B Button> of V4 Plus for 5s. Red and blue lights flash alternately and quickly. "Remote Control Pairing".
3. Click any key of EUC.

Pairing Successfully. "Pairing Successful". (If EUC cannot be successful paired in 2 mins, it will automatically exit the pairing mode.)

FCC Compliance

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.