Introduction
The Fotopro BT-4 Bluetooth Photo Trigger allows you to remotely activate your smartphone's camera shutter from up to 10 meters away. It operates using Bluetooth 3.0 or higher and does not require any special application installation, working seamlessly with your smartphone's native camera app or most third-party photo applications. This manual provides detailed instructions for setup, operation, and maintenance of your BT-4 device.
Product Overview
The Fotopro BT-4 is a compact, black, square-shaped remote control designed for ease of use. It features a single shutter button and an ON/OFF switch. A wrist strap is included for convenient carrying.

Image: The Fotopro BT-4 Bluetooth Photo Trigger, a small black square device, shown with its attached black wrist strap featuring the Fotopro logo.

Image: A hand holding the Fotopro BT-4 Bluetooth Photo Trigger, demonstrating its compact size and ergonomic design for single-handed operation.

Image: A side view of the Fotopro BT-4, highlighting the 'ON/OFF' slide switch located on its edge for power control.

Image: A top-down view of the Fotopro BT-4, showing the central camera icon which serves as the shutter button, and an open battery compartment revealing the internal battery.

Image: The retail packaging for the Fotopro BT-4 Bluetooth Remote Control Self-timer, displaying compatibility information for iOS and Android devices.
Setup Instructions
Follow these steps to connect your Fotopro BT-4 to your smartphone:
- Power On: Press the ON/OFF button on the side of the remote control to turn it on.
- Activate Bluetooth: On your smartphone, go to your settings and activate Bluetooth. Start a search for new devices.
- Pair Device: Locate 'BT-4' or a similar name in the list of available Bluetooth devices and select it to pair. Your phone may indicate successful pairing.
- Open Camera App: Open your preferred camera application on your smartphone.
- Ready to Use: The Fotopro BT-4 is now ready to capture photos.
Operating Instructions
Once the BT-4 is successfully paired with your smartphone, simply press the main button (with the camera icon) on the remote control to trigger the camera shutter. This will capture a photo or, depending on your camera app's settings, may start/stop video recording.
Charging and Battery Life
The Fotopro BT-4 features a rechargeable internal battery, eliminating the need for disposable batteries. To charge the device, connect it using the included USB cable to a compatible USB power source (e.g., computer USB port, USB wall adapter).
- A full charge typically takes approximately one hour.
- The remote offers an autonomy of 7 to 15 days, depending on usage frequency.
Compatibility
The Fotopro BT-4 is designed for broad compatibility with various smartphones:
- Bluetooth Version: Compatible with Bluetooth 3.0 and higher.
- Operating Systems: Supports Android 2.3.6 and higher, and iOS 5.0 and higher.
- Tested Devices Include:
- iPhone 4/4S/5/5S/5C/SE/6/6S/6 Plus/6S Plus
- Samsung Galaxy S2 / S3 / S4 / S5 / S6 / S6 Edge / S7 / S7 Edge
- Sony Xperia Z / Z1 / Z2 / Z3 / Z4 Compact / Z5
- LG G3 / G4, Nexus 4/5
- Wiko Rainbow, Highway, Fever, Lenny, Pulp
Maintenance
To ensure the longevity and optimal performance of your Fotopro BT-4:
- Keep the device clean and dry. Avoid exposure to liquids or excessive moisture.
- Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Charge the device regularly, even if not in frequent use, to maintain battery health.
- Use only the provided USB cable or a certified equivalent for charging.
Troubleshooting
If you encounter issues with your Fotopro BT-4, please refer to the following common solutions:
- Device Does Not Pair:
- Ensure Bluetooth is enabled on your smartphone.
- Verify the BT-4 is powered on (check the ON/OFF switch).
- Try restarting both your smartphone and the BT-4.
- If previously paired, try unpairing and re-pairing the device.
- Device Does Not Trigger Photos:
- Confirm the BT-4 is correctly paired with your smartphone.
- Ensure your camera application is open and active.
- Some camera apps may require specific settings to enable remote shutter functionality. Check your app's settings.
- Device Does Not Charge:
- Check the USB cable for any damage and ensure it is securely connected.
- Verify that the USB power source is functional.
- Ensure the charging port on the BT-4 is clean and free of debris.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BT-4 |
| Connectivity Technology | Bluetooth |
| Bluetooth Version | 3.0 or higher |
| Maximum Range | 10 meters |
| Dimensions (L x W x H) | 5 x 4 x 1 cm |
| Item Weight | 13 g |
| Special Features | Rechargeable |
| Color | Black |
| Manufacturer | Fotopro |
| Compatible Devices | Smartphone |
| Number of Buttons | 1 |
| Controller Type | Button Control |
Warranty and Support
The Fotopro BT-4 Bluetooth Photo Trigger comes with a factory warranty of 1 year from the date of purchase. For warranty claims, technical assistance, or any other support inquiries, please refer to the contact information provided with your product packaging or visit the official Fotopro website.