1. Introduction
The ROCKBROS A8Pro is a versatile 2-in-1 bicycle tail light and horn, designed to enhance cycling safety. It features remote control operation, brake sensing, an alarm function, and IPX5 waterproofing. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and safety.
2. Specifications
Below are the detailed specifications for the ROCKBROS A8Pro tail light and its remote control.
| Feature | Detail |
|---|---|
| Material | PC+ABS |
| Decibel | 115db |
| Net weight | ~48g |
| Lamp beads | COB Highlight light source |
| Size | ~44*43*41mm |
| Battery | 700mAh (3.7V) |
| Waterproof Index | IPX5 |
| Feature | Detail |
|---|---|
| Size | ~58*35*15mm |
| Battery | 12V/27A Alkaline battery |
| Remote control distance | 10~80m (Empty distances), Can pass through the wall |
3. Package Contents
The following items are included in your package:
- Hand screw
- Short screw
- Large cable tie * 2
- Small cable tie * 2
- Wrench
- Remote control bracket pad
- Silicone pad * 2
- Non-slip gasket
- Remote control
- Taillight unit
4. Installation
Follow these steps to properly install your ROCKBROS A8Pro tail light and remote control.
4.1 Remote Control Installation Steps
- The remote control bracket accessories are fixed with a large cable tie in a place where the horizontal handlebar is easy to touch with your thumb.
- Just plug in the remote control.
- To remove the remote control, just press the bottom slider to remove the remote control.
Warm reminder: When the bicycle is parked outdoors, the host is equipped with an alarm state, and the taillights are exposed.
4.2 Saddle Installation Steps
- Fix the saddle bracket to the saddle.
- Tie tightly with a small cable tie and cut off the excess parts.
- Insert the host and and lock it with a hand screw.
4.3 Seatpost Installation Steps
- Install the tube-shaped bracket in the seatpost position, and use a wrench to lock the short screw and adjust the accessory bracket in the direction.
- Insert the host into the fixed slot and lock it with hand screw.
- Adjust the appropriate rear viewing angle and complete the installation.
5. Operation
Learn how to use the various functions of your ROCKBROS A8Pro tail light and horn.
5.1 Remote Control Functions
- Arm key: Click the arm key of the remote control, and the taillight will ring three times "do re mi" to prompt that the taillight has entered the arming state. After 3s, a "di" sound will be heard. After a gap of 5s, touch it to enter the alarm state.
- Disarm key: In the alert state, click the remote control disarm key, and the taillight will sound a long "mi re do" sound. At this time the tail light has exited the alert mode.
- Light control key: When the host is not armed, press the light control button of the remote control and the light will switch between four modes: slow flashing, breathing flashing, fast flashing, steady on.
- Ringtone key: Press the ringtone key to activate the wireless bell.
Note: The alarm will only be triggered after touching the vehicle after 5s of stationary state, and the 5s of stationary is to prevent the armer from touching the bike when leaving the bike, so as not to trigger the alarm and cause trouble.
5.2 Taillight Modes and Brightness Adjustment
Short press the button on the taillight to switch between the four lighting modes:
| Gear | Mode | Daytime | Night |
|---|---|---|---|
| Short press 1 gear | Red slow flash (Smart mode) | Lights on for 3s when braking and off at other times | Breathing flash + brake light + 30s vibration start-stop |
| Short press 2 gear | Red breathing flash (Smart mode) | Lights on for 3s when braking and off at other times | Breathing flash + brake light + 30s vibration start-stop |
| Short press 3 gear | Red flash (Non-smart mode) | Day and night flashing + brake light | |
| Short press 4 gear | Red always on (Non-smart mode) | Day and night always on + brake light |
To adjust brightness, set the taillight to one of the 4 steady-on modes and long press the button to cycle through brightness levels (Low, Mid, High).
5.3 Brake Sensing and Smart Mode
The taillight is equipped with brake sensing and an intelligent smart mode, utilizing dual sensing of vibration and light. This allows it to respond to road conditions in real-time, enhancing safety.
- Brake Sensing: When braking is detected, the taillight highlights for 3 seconds to warn vehicles behind you.
- Intelligent Light Sensing: When ambient light is sufficient (e.g., bright sun) or when parked for 30 seconds, the taillight automatically enters sleep mode to conserve power.
- Intelligent Vibration Sensing: The taillight automatically wakes up when ambient light is insufficient (e.g., entering a tunnel) or when vibration is detected, quickly activating for the road.
5.4 Alarm and Horn Functions
- Alarm Trigger: In the arming state, if the tail light detects vibration or knocking action, it will start to sound the alarm for 2s. If vibration is still detected within 2-12s, the alarm will continue for 30s.
- Wireless Bell: When the taillight is not in the armed state, press the bell button of the remote control, and the taillight will ring the set electric bell.
- Personalized Function Settings:
- Vibration Alarm Sensitivity Setting: Press and hold the remote control disarm key and don't let go until the remote control LED indicator lights up again. At the same time, the alarm will have a "bi" prompt. At this time, press the remote control arming button again. Each time you press it, the vibration sensitivity switches level. The sensitivity is adjustable at 3 levels: high—medium—low. The corresponding prompt sound is "BiBiBi (high)", "BiBi (medium)" and "Bi (low)". After the setting is complete, short press the remote control disarm key to exit the setting.
- Alarm Volume Setting: The alarm volume is adjustable at 3 levels: high—medium—low. Press and hold the remote control disarm key without letting go until the remote control LED indicator lights up again, and the alarm will have a "bi" prompt. At this time, press the remote controller to control the light key again. Each time you press it, switch the volume once. Each time you switch, the corresponding volume of "bi" sound will be played. After the setting is complete, press the disarm key of the remote control to exit the setting.
- Alarm Bell Setting: When the taillight is not in the arming state, the bell sound can be set to five sounds. Press and hold the remote controller disarm key and do not let go until the remote control LED indicator lights up again. At the same time, the alarm will have a "bi" prompt. At this time, press the remote control bell key again. Each time you press it, the bell sound switches once, and each time you switch, the corresponding bell sound will be played. After the setting is complete, press the disarm key of the remote control to exit the setting. The five sounds are "horn sound 1", "horn sound 2", "horn sound 3", "bird call" and "Didi sound".
Note: These three settings can be completed at once. Press and hold the remote control disarm key and don't let go until the remote control LED indicator lights up again. At the same time, the alarm will have a "bi" prompt. At this time, you can set the above 1, 2, and 3 items according to your personal needs. After the setting is complete, press the disarm key of the remote control and the setting is complete.
6. Charging
The ROCKBROS A8Pro tail light features a 700mAh lithium battery and Type-C charging.
- The lights are slightly on when charging, and off when fully charged.
- If the lights are slightly on when low-powered and make a "biu" sound, it is recommended to use a power bank to charge directly or remove the taillights to charge.
- Ensure the charging port plug is fully inserted for proper charging and to maintain waterproof performance.
- If the power is low, the brightness of the light will be reduced by half. When using the remote control, there will be a "biu" sound or the remote control distance will be shortened. If the voltage is low, it needs to be charged.
7. Maintenance
To ensure the longevity and optimal performance of your tail light, follow these maintenance guidelines.
7.1 Waterproofing (IPX5)
The ROCKBROS A8Pro is IPX5 waterproof, meaning it can withstand splashes and light rain. This ensures it can still work stably in humid environments, allowing you to ride with peace of mind on rainy days without worrying about damage due to water.
- Always ensure the waterproof plug of the charging port is fully inserted to maintain its waterproof performance.
- Do not soak the device in water.
8. Troubleshooting
If you encounter any issues with your ROCKBROS A8Pro, refer to the common problems and solutions below.
- Q: Why is the taillight alarm not sensitive?
- A: Please do not move the bicycle immediately in the arming state. Wait for another 5 seconds and listen for the "di" sound before the alarm state fully activates.
- Q: Why can't the remote control control the taillight all of a sudden?
- A: This could be due to low power in the remote control or the taillight, or interference. Ensure both devices have sufficient power. If the issue persists, try replacing the remote control battery or re-pairing the remote control.
- Q: Why can't the taillights be charged or the charging is slow?
- A: It is recommended to use the original 2A charging cable. Check that the charging interface is inserted correctly. If the taillight is slightly on, it indicates that it has been powered on.
- Q: When is it time to charge? When does it indicate not enough power? How is it signaled?
- A: When you press the remote control, if "biu biu" appears after the normal tone, it means that the voltage is low, the battery is low, and it needs to be charged. In addition, the remote control distance becomes shorter, the light becomes weaker, and the remote control seems to be not sensitive enough. It is a precursor to insufficient power, that is, it needs to be charged.
- Q: If the remote control is lost, how to remove the docking with the host and match the new remote control?
- A: If the remote control is lost, to prevent thieves from stealing the bike in the absence of arming, you can press and hold the host button for 7s without letting go. If you hear a long "di" sound, the lost remote control will not be able to control the host. After purchasing a new remote control, press and hold the host button for 3s, hear a short "di" and then press any button of the remote control, prompting "di di" twice to indicate that the docking is successful.
- Q: I lost my remote control, the customer service reassigned a remote control.
- A: A host can be equipped with three remote controls. Please contact our customer service staff. Newly purchased products need to be fully charged before use. The factory battery power is in a low voltage state.
8.1 Warnings and Precautions
- Do not place the alarm next to your ears to avoid damaging your hearing by pressing the button or alarming.
- Children are strictly prohibited from playing with this device.
- Do not put this device in the fire.
- Please pay attention to close the silicone cover of the charging port when not charging to maintain waterproof integrity.
9. User Tips
Here are some helpful tips for using your ROCKBROS A8Pro tail light:
- When arming the alarm, always wait for the confirmation sound and the full 5-second delay before leaving your bike to ensure the alarm is active.
- Regularly check the battery level of both the taillight and the remote control to avoid unexpected power loss during rides.
- Always ensure the Type-C charging port's silicone cover is securely closed when not charging to maintain the IPX5 waterproof rating.
- If you need to replace a lost remote control, follow the re-pairing instructions carefully to ensure proper functionality with your tail light.
10. Warranty and Support
For any warranty claims, technical support, or further assistance, please contact the retailer or manufacturer directly. Keep your proof of purchase for warranty validation.
