4ch Wireless Flash Trigger Kit includes 1 Transmitter and 3 Receivers
and immediate download- Master Lighting Guide to Flash Photography by Scott Robert Lim
THIS SET WILL CONTROL UP TO THREE HOT SHOE STROBES OF ANY BRAND

I have been using these triggers in every professional capacity for the past year and have been extremely pleased with their performance. They are extremely dependable and easy to use. Every kit uses four independent channels so each transmitter can control its own flash group.

I've also include a revolutionary learning guide ($95 value!) filled with examples, diagrams, audio commentary, and video on how to use a manual system with will save photographers thousands of dollars. I've included many resource links and there is almost an unlimited amount of material on using a manual flash sytem for precise creative control. I even talk about posing and life coaching tips on how to become an elite photographer. There is even a video on how to set up these triggers.

Technical Parameters:
 
Transmitter
Receiver
Power Source
23A
AAA x2
Outdoor operating distance (open area) > 200 ft
Indoor operating distance > 30ft
Frequency Channel
4
Operating Frequency
FM 433Mhz
Outdoor Synchronous Speed (open area)
Max 1/500sec
Indoor Synchronous Speed
Max 1/250sec
How to use:
• Make sure the channel selector of both transmitter and receiver at same position
• Insert your flash hot shoe socket into the receiver's hot shoe jack
• Press the test button on your transmitter. The Flash should now flash
• Insert the transmitter's hot shoe socket into your camera's hot shoe jack
• (if your camera does not have a hot shoe use a PC sync cord and insert into the socket)
• You should now be ready to start shooting

This product comes with a limited one year USA Warranty