Introduction
Thank you for choosing the BETOWEY BT-S2 Motorcycle Bluetooth Intercom Headset. This manual provides detailed instructions for the proper installation, operation, and maintenance of your device. Please read this manual thoroughly before use to ensure optimal performance and safety.
The BT-S2 is designed to enhance your riding experience by providing clear communication, music playback, GPS navigation, and FM radio functionality, all while maintaining hands-free operation.
Package Contents
Verify that all items listed below are included in your package:
- 2x BT-S2 Intercom Units
- 2x Headset & Microphone (soft wired microphone for full-face helmets)
- 2x USB Charging Cables
- 4x Adhesive Pads
- 2x Allen Keys
- 2x Helmet Clips with Fixing Screws
- 2x Audio Cables
- 1x User Manual

Product Overview
Familiarize yourself with the main components and controls of the BT-S2 intercom unit.

- Volume Up/Next Track Button: Press to increase volume, long press for next track.
- Phone Button: Answer/end calls, redial, activate voice assistant.
- Charging/Microphone Jack: Connect USB charging cable or microphone.
- Power/Intercom Button: Power on/off, initiate/end intercom.
- LED Indicator: Displays device status (pairing, connected, charging).
- Volume Down/Previous Track Button: Press to decrease volume, long press for previous track.
Setup and Installation
Follow these steps to properly install the BT-S2 intercom on your helmet.
1. Mounting the Intercom Unit
- Choose a suitable location on the left side of your helmet.
- Use the provided helmet clip with screws for a secure attachment. Alternatively, use the adhesive pad for a tool-free installation.
- Ensure the unit is firmly attached and does not obstruct your vision or helmet functionality.
2. Installing the Headset and Microphone
- Attach the earpieces inside the helmet, aligning them with your ears. Use the adhesive pads if necessary.
- Position the microphone in front of your mouth, ensuring it is close enough for clear voice pickup but not touching your lips.
- Connect the microphone cable to the intercom unit's microphone jack. Ensure correct orientation for optimal audio quality.


Operating Instructions
1. Power On/Off
- Power On: Press and hold the Power/Intercom button for approximately 3 seconds until the blue LED flashes.
- Power Off: Press and hold the Power/Intercom button for approximately 5 seconds until the red LED flashes and the unit powers down.
2. Bluetooth Pairing with Mobile Phone
- With the unit off, press and hold the Power/Intercom button for about 5-7 seconds until the red and blue LEDs flash alternately. This indicates pairing mode.
- On your mobile phone, enable Bluetooth and search for devices. Select "BT-S2NS" (or "BT-S2" for older versions) from the list.
- Once paired, the blue LED will flash slowly.
3. Intercom Pairing (Rider-to-Rider)
The BT-S2 supports pairing with up to 3 riders, with 2 riders communicating simultaneously over a maximum distance of 1000m.

- Ensure both BT-S2 units are powered off.
- On both units, press and hold the Power/Intercom button for approximately 5-7 seconds until the red and blue LEDs flash alternately, indicating pairing mode.
- Briefly press the Power/Intercom button on one of the units. The units will search for each other.
- Once connected, the blue LED on both units will flash slowly, and you will hear a confirmation tone.
- To initiate intercom communication, briefly press the Power/Intercom button on either connected unit. To end, press it again.
4. Phone Calls
- Answer Call: Briefly press the Phone button.
- End Call: Briefly press the Phone button.
- Reject Call: Long press the Phone button for 2 seconds.
- Redial Last Number: Double-press the Phone button.
5. Music Playback
- Play/Pause: Briefly press the Phone button.
- Next Track: Long press the Volume Up button.
- Previous Track: Long press the Volume Down button.
- Volume Adjustment: Briefly press Volume Up or Volume Down buttons.
6. FM Radio
- Turn On/Off FM Radio: Double-press the Power/Intercom button.
- Scan Channels: Briefly press the Volume Up or Volume Down button to change stations.
7. Voice Assistant
The BT-S2 supports voice assistant functionality (e.g., Siri, Google Assistant).
- Activate Voice Assistant: Long press the Phone button for 2 seconds.

Maintenance
Proper maintenance ensures the longevity and optimal performance of your BT-S2 intercom.
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Water Resistance: The unit is waterproof, suitable for various weather conditions. However, avoid submerging it in water.
- Charging: Charge the unit using the provided USB cable. A full charge takes approximately 8 hours.
- Storage: When not in use for extended periods, store the unit in a cool, dry place. Charge the battery periodically to maintain its health.

Troubleshooting
If you encounter issues with your BT-S2 intercom, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted. | Charge the unit for at least 8 hours. |
| Cannot pair with phone/intercom | Not in pairing mode; too far apart; interference. | Ensure unit is in pairing mode (red/blue flashing). Move closer. Restart both devices. |
| Low volume or unclear audio | Microphone incorrectly inserted; earpieces misaligned; volume too low. | Check microphone insertion (refer to Figure 4). Adjust earpiece position. Increase volume. |
| Intercom disconnects frequently | Out of range; interference. | Stay within 1000m range. Avoid areas with strong electromagnetic interference. |
| FM radio not working | Weak signal; not activated. | Ensure FM radio is activated. Move to an area with better signal reception. |
Specifications
Key technical specifications for the BETOWEY BT-S2 Intercom Headset:
- Bluetooth Version: V5.0
- Intercom Range: Up to 1000 meters (line of sight)
- Intercom Support: 3 riders paired, 2 riders simultaneous talk
- Talk Time: Approximately 10 hours
- Charging Time: Approximately 8 hours
- Battery Type: Lithium-polymer (rechargeable)
- Noise Reduction: DSP Echo Cancellation and Noise Suppression
- Water Resistance: Waterproof design
- Special Features: FM Radio, Voice Assistant (Siri, Google Assistant)
- Material: Plastic
- Connectivity: Wired (for microphone/earpieces), Wireless (Bluetooth)

Warranty and Support
Information regarding specific warranty terms and customer support contact details for the BETOWEY BT-S2 is not available in this manual. Please refer to the product packaging or the official BETOWEY website for the most up-to-date warranty information and customer service contacts.