1. Introduction
The JJC JF-U2+Cable-C is a versatile 3-in-1 wireless remote control kit designed for photographers. It functions as a wireless flash trigger, a wireless camera shutter remote, and a wired camera shutter remote. This kit provides enhanced flexibility for various photography setups, allowing you to trigger flashes or your camera from a distance. It operates on a 433MHz frequency with 16 selectable channels and offers an operating range of up to 100 feet (30 meters) and a maximum flash sync speed of 1/250s.

Image 1.1: Overview of the JJC 3-in-1 Wireless Flash Trigger and Remote Shutter Kit features.
2. Package Contents
- Wireless Transmitter (1 unit)
- Wireless Receivers (2 units)
- Shutter Cable for Canon (replaces RS-60E3)
- Studio Light Cable (2 pieces)
- 3.5mm-6.3mm Adapter (2 pieces)
- 23A Battery (1 piece, for transmitter)
- AAA Batteries (4 pieces, for receivers)

Image 2.1: The complete JJC Wireless Flash Trigger and Shutter Remote Control Kit.
3. Component Identification
3.1 Transmitter

Image 3.1: Front and back view of the Transmitter with labeled components.
- Test Button/Shutter Release Button
- Indicator Light
- Camera Hot Shoe Connection
- Locking Ring
- Channel Setting Buttons (DIP switches)
- Battery Slot (for 23A 12V battery)
3.2 Receiver

Image 3.2: Front and back view of the Receiver with labeled components.
- Hot Shoe Socket
- Mode Switch (Flash / OFF / Camera)
- Indicator Light
- Cold Shoe Mount with 1/4"-20 Thread
- Locking Ring
- Channel Setting Buttons (DIP switches)
- Battery Slot (for 2x AAA batteries)
4. Setup and Installation
4.1 Battery Installation
- Transmitter: Open the battery compartment on the back of the transmitter. Insert one 23A 12V battery, ensuring correct polarity. Close the compartment.
- Receivers: Open the battery compartment on the back of each receiver. Insert two AAA batteries into each receiver, ensuring correct polarity. Close the compartment.
Note: Some batteries may come wrapped in clear plastic. Remove this plastic before installation to ensure proper contact.
4.2 Channel Setting
Both the transmitter and receiver(s) must be set to the same channel for proper communication. Use the DIP switches located in the battery compartment of both units to select one of the 16 available channels. Ensure the switch positions match on all units you intend to use together.

Image 4.1: Setting the channel using the DIP switches on the transmitter and receiver.
5. Operating Instructions
5.1 As a Wireless Camera Shutter Remote
- Set the mode switch on the receiver to the "Camera" option.
- Mount the receiver onto your camera's hot shoe.
- Connect the provided shutter cable (RS-60E3 replacement) from the receiver to your camera's remote control port.
- To focus, half-press the button on the transmitter. To take a photo, fully press the button.
Video 5.1: Demonstration of using the JJC 3-in-1 Flash Trigger & Shutter Remote Kit as a wireless camera remote control. This video shows battery installation, setting the mode switch to 'Camera', connecting the receiver to the camera's hot shoe and remote port, and then using the transmitter to wirelessly focus and trigger the camera shutter.

Image 5.2: Wireless remote function setup with camera and receiver.
5.2 As a Wired Camera Shutter Remote
- Connect the provided shutter cable (RS-60E3 replacement) directly from the receiver to your camera's remote control port.
- The receiver can now be used as a wired remote control. Half-press the button to focus, and fully press to take a photo.
5.3 As a Wireless Flash Trigger
- Set the mode switch on the receiver(s) to the "Flash" option.
- Mount the receiver(s) onto your flash unit(s) hot shoe.
- Mount the transmitter onto your camera's hot shoe.
- Ensure all units (transmitter and receivers) are set to the same channel.
- When the camera shutter is released, the transmitter will send a signal to the receiver(s), triggering the flash unit(s).
Note: This kit does not transmit TTL settings. Use with flash units that support full manual control is recommended.

Image 5.3: Wireless flash trigger setup with camera, transmitter, and two flash units with receivers.
5.4 Triggering Studio Flashes
- Set the mode switch on the receiver(s) to the "Flash" option.
- Connect the studio light cable (with 3.5mm or 6.3mm adapter if needed) from the receiver to the sync interface of your studio flash.
- Mount the transmitter onto your camera's hot shoe.
- Ensure all units are set to the same channel.
- When the camera shutter is released, the transmitter will trigger the studio flash unit(s).

Image 5.4: Connecting the receiver to a studio flash unit.
6. Compatibility
The JJC JF-U2+Cable-C is compatible with a wide range of camera flashes that feature a standard hot shoe. It is also compatible with various Canon DSLR cameras for shutter remote functions, specifically those using the RS-60E3 type remote port.

Image 6.1: Flash unit compatibility chart.
6.1 Flash Compatibility
| Brand | Compatible Models |
|---|---|
| Canon | 580EX II, 580EX, 540EZ, 520EZ, 430EX II, 430EX, 430EZ, 420EX, 420EZ, 380EX |
| Nikon | SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24, SB-700 |
| Olympus | FL-50R, FL-50, FL-36R, FL-36 |
| Pentax | AF-540 FGZ, AF-360 FGZ, AF-400FT, AF-240FT, AF-200FG |
| Sigma | EF-530 DG Super, EF-530 DG ST (for Nikon only), EF-500 DG Super, EF-500 DG ST (for Nikon only), EF-430 |
| Metz | 36AF, 48AF, 58AF |
| Bower | SFD35 C/N, SFD728 C/N, SFD328 C/N/O, SFD680 C/N, SFD926 OC/N/O |
| Phoenix | DZBIS-112C II, SmartFlash 99 c/n |
Note: Also compatible with other flash models with a trigger voltage of 12V or lower.
6.2 Camera Compatibility (for Shutter Remote)
This kit is compatible with Canon cameras that use the RS-60E3 type remote port. This includes models such as Canon Rebel T8i, T7i, T6i, T6, T5i, T5, T4i, T3i, SL2, SL1, EOS 90D, 80D, 70D, 77D, 60D, RP, R, and similar models.
7. Specifications
- Model: JF-U2+Cable-C
- Wireless Frequency: 433MHz
- Channels: 16
- Operating Distance: Up to 100 feet (30 meters)
- Max Sync Speed: 1/250s
- Transmitter Battery: 1x 23A 12V battery (included)
- Receiver Battery: 2x AAA batteries (included)
- Product Dimensions: 4.33 x 5.71 x 1.57 inches (approximate)
- Item Weight: 8.8 ounces (approximate)
8. Maintenance and Care
- Keep the device dry. Do not handle with wet hands.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Remove batteries if the device will not be used for an extended period to prevent leakage.
- Store the device in a cool, dry place away from dust and moisture.
9. Troubleshooting
- Device not powering on: Check if batteries are installed correctly and have sufficient charge. Ensure any protective plastic tabs on new batteries are removed.
- Flash not triggering/Camera not responding:
- Verify that the transmitter and receiver(s) are set to the same channel.
- Ensure the receiver's mode switch is set correctly (e.g., "Flash" for flash triggering, "Camera" for shutter remote).
- Check the connection of the shutter cable to both the receiver and the camera.
- Confirm that the flash unit is powered on and ready to fire.
- Ensure the operating distance is within the specified 100 feet (30 meters) range and there are no significant obstructions.
- Test with fresh batteries in all units.
- Inconsistent triggering: This could be due to low battery power, interference from other wireless devices, or being at the edge of the operating range. Try changing channels or moving closer to the receiver(s).
10. Warranty and Support
JJC products are designed and manufactured to high-quality standards. For warranty information and technical support, please refer to the documentation included with your purchase or visit the official JJC website. Keep your proof of purchase for warranty claims.