From the Manufacturer

This CowboyStudio 16-Channel Wireless Radio Remote Trigger is designed for photographic studio and on-location work and would be a great addition to your studio. The wireless remote trigger works well with various flash lights and strobes.

The transmitter should be attached on the hot shoe of the camera while the receiver should be plugged into the studio flash. Each receiver works with one studio flash.

Specifications:

• Micro-computer control
• Triggering delay is 1/1600 second
• Long lifetime of trigger battery, one year or over 20,000 continuous triggers
• Receiver uses two AAA batteries (Not included) with power switch
• Working indication: LED
• Maximum effective area: 15m (open area without interference)

Directions:

1. Remove the battery cover door from the receiver and install two AAA batteries. Replace the door. The transmitter comes with a pre-installed battery.
2. Slide your flash unit onto the hot shoe of the receiver in the same fashion as though you were putting it on your camera. If your flash uses a PC sync cable, attach the cable to the PC sync socket which is located on the side of the receiver. For use with studio lights plug in the PC sync cable into the receiver and connect the ¼-inch converter to the opposite end of the cable. Plug the ¼-inch converter into your studio lights.
3. Attach the receiver and flash unit to your tripod or light stand by screwing it onto the ¼-inch tripod mount on the receivers L-bracket, located on the bottom of the device. If your tripod or light stand has a hot shoe attachment. You can slide the receiver onto the hot shoe clip also using the receivers L-bracket.
4. Switch the channel numbers on the receiver and the transmitter to the same setting. On the receiver the channel numbers are located on a small blue panel on the front of the device. The channel numbers on the transmitter are also located on a small blue panel but on the bottom of the device. Press the test button located on top of the transmitter; the LED on the receiver will flash briefly to signal that the units are working together.
5. Slide the transmitter onto the hot shoe of your camera just as you would a regular flash and begin taking photographs.