1. Introduction
Thank you for choosing the ROCKBROS Bicycle Bell Type-C Vibration Anti-Theft Electric Bike Alarm Horn. This device combines a powerful electric horn with an advanced anti-theft alarm system, offering enhanced security and convenience for your bicycle. Featuring Type-C charging, IPX5 waterproofing, and a wireless remote control, it's designed for durability and ease of use. Please read this manual carefully before installation and operation to ensure optimal performance and safety.
2. Safety Information
- Do not immerse the device in water, despite its IPX5 rating, to prevent damage.
- Keep the device and remote control away from extreme temperatures and direct sunlight.
- Ensure the device is securely mounted to prevent it from falling off during cycling.
- Do not attempt to disassemble or repair the device yourself. Contact customer support if issues arise.
- Keep out of reach of children.
3. Package Contents
The package typically includes:
- 1 x ROCKBROS Bicycle Bell / Alarm Host Unit
- 1 x Wireless Remote Control
- 1 x USB Type-C Charging Cable
- Mounting Accessories (cable ties, bracket, screw)
4. Product Features
- Wireless Remote Control: Conveniently arm/disarm, sound the alarm, or use the bell from a distance.
- Anti-Theft Alarm: Vibration-sensitive alarm with adjustable sensitivity levels (3 levels).
- Electric Bell: Features 5 different ringtones for various signaling needs.
- Type-C Charging: Modern and convenient charging for the main unit's 400mAh lithium battery.
- LED Power Indicator: Displays battery status to prevent unexpected power loss.
- IPX5 Waterproof: Resistant to water splashes and dust, suitable for various weather conditions (do not soak).
- Durable Material: Constructed from ABS + PC engineering plastic for wear resistance and durability.
- Compact Design: Lightweight and small, easy to carry and install.
5. Setup and Installation
5.1. Horn Installation
- Fix a cable tie onto the bracket.
- Strap the cable tie tightly around your bicycle's handlebar or seat post.
- Cut off the rest of the excess cable tie.
- Insert the horn unit into the bracket.
- Tighten the screw to secure the horn.
- Installation complete.
5.2. Remote Control Installation
- Open the remote bracket pad.
- Attach the pad to the back of the remote control bracket.
- Insert a cable tie through the bracket.
- Fix the bracket on your bike's handlebar.
- Insert the remote control onto the bracket.
- Installation complete.
6. Operating Instructions
Watch the official product demonstration video for a visual guide:
6.1. Arming and Disarming the Alarm
- Arming: Press the "LOCK" button on the remote control. The device will emit a short beep, indicating it has entered the arming state. After 3 seconds, if vibration is detected, the alarm will give a warning sound ("BEEP-BEEP"). Continued touch will trigger the full alarm.
- Disarming: Press the "UNLOCK" button on the remote control. The device will emit a "MI-RE-DO" sound, indicating it is disarmed.
6.2. Finding Your Bike (Panic Alarm)
If you need to locate your bike in a crowded area, press the "ALARM" button on the remote control. The device will emit a loud "biu-biu-biu" sound.
6.3. Electric Bell Function
Press the "BELL" button on the remote control to activate the electric bell. A short press will produce a short ringtone, while a long press will produce a long ringtone.
6.4. Vibration Sensitivity Setting
The alarm has 3 levels of shock sensation adjustment.
- Hold the "UNLOCK" button on the remote control until you hear a beep sound.
- Press the "LOCK" button to cycle through the 3 sensitivity levels (low, medium, high). Each press will indicate the current level with a corresponding number of beeps.
- Release the "UNLOCK" button to save the setting.
6.5. Volume Setting
The alarm has multiple volume levels.
- Hold the "UNLOCK" button on the remote control until you hear a beep sound.
- Press the "ALARM" button to cycle through the available volume levels. Each press will play the current volume.
- Release the "UNLOCK" button to save the setting.
6.6. Ringtone Setting
The electric bell has 5 kinds of ringtones to choose from.
- Hold the "UNLOCK" button on the remote control until you hear a beep sound.
- Press the "BELL" button to cycle through the 5 ringtones. Each press will play the next ringtone.
- Release the "UNLOCK" button to save the setting.
7. Charging
The main unit features a built-in 400mAh (3.7V) lithium battery and charges via a Type-C port. Connect the provided Type-C cable to the device and a suitable USB power source (e.g., computer, USB wall adapter). The LED power indicators will show the charging status. Ensure the device is fully charged before first use for optimal battery life.
8. Maintenance
- Cleaning: Wipe the device with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the device in a cool, dry place when not in use for extended periods.
- Battery: Recharge the main unit regularly, even if not in frequent use, to maintain battery health. The remote control uses a 12V/27A alkaline battery, which should be replaced when its performance degrades.
- Water Exposure: While IPX5 rated, avoid prolonged exposure to heavy rain or submerging the device in water.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm not responding to remote. | Low remote battery, out of range, interference. | Replace remote battery (12V/27A). Move closer to the device. Avoid areas with strong electromagnetic interference. |
| Alarm not sounding or too quiet. | Low main unit battery, volume set too low. | Recharge the main unit. Adjust the volume setting (see Section 6.5). |
| Alarm triggers too easily or not at all. | Incorrect sensitivity setting. | Adjust the vibration sensitivity level (see Section 6.4). |
| Main unit not charging. | Faulty cable, power source, or charging port. | Try a different Type-C cable and power source. Ensure the charging port is clean and free of debris. |
10. Specifications
| Attribute | Detail |
|---|---|
| Brand | ROCKBROS |
| Product Name | Electronic horn |
| Article No. | 34210004001 |
| Material | PC ABS engineering plastic |
| Weight | 40/23g (net weight) |
| Color | Black |
| Remote Control Size | Approx. 58 x 35 x 15 mm |
| Host Unit Size | Approx. 44 x 31 x 49 mm |
| Battery Capacity (Host) | 400mAh (3.7V) lithium battery |
| Remote Control Battery | 12V/27A alkaline battery |
| Remote Control Distance | 10-80m (open area) / Penetrates walls |
| Volume Decibels | 83-85dB (low) / 105-108dB (medium) / 110-115dB (high) |
| Waterproof Rating | IPX5 |
| Warranty | 1 year |
11. User Tips
- Dual Functionality: This device serves both as an anti-theft alarm and an electric horn. You can use the 'BELL' button on the remote for signaling while riding, and the 'LOCK' button to arm the anti-theft feature when parking.
- Battery Awareness: Pay attention to the LED power indicators on the main unit to avoid running out of battery unexpectedly. Regular charging ensures the alarm and bell are always ready.
- Optimal Placement: Experiment with different installation locations for both the main unit and the remote control to find what works best for your bike and riding style, ensuring easy access to the remote and clear sound projection from the horn.
12. Warranty and Support
This product comes with a 1-year warranty from the date of purchase. For warranty claims, technical support, or any questions not covered in this manual, please contact your retailer or ROCKBROS customer service. Please retain your proof of purchase for warranty validation.