Wireless Radio Remote Flash Trigger 1 Transmitter + 2 Receivers for Canon EOS 450D, 1000D, 550D, 400D, 500D, 350D, Xsi, T1i, T2i, Xti, XS, XT, 50D, 40D, 10D, 20D, 7D, 5D Mark II, 1D Mark II, III, IV, 1Ds

Features:
1.4 selectable radio channels
Two LEDs for power and signal
Receiver can be fixed on standard Tripod with 1/4" thread
compatible with most of the flash guns such as Canon 580/430EX, Nikon SB600/800/900
The transmitter/receiver pair can be used to trigger all studio strobe light units by employing a 6.35mm standard phone jack or 3.5mm mini phone jack sync input (included in package)
The transmitter works with all cameras with a standard hotshoe socket (Except Minolta & Sony).
A universal hotshoe socket on the receiver for portable (hotshoe) flash such as Canon, Nikon, Olympus, Pentax, Sigma and etc (Except Minolta & Sony).
The receivers can be mounted on standard Tripod with 1/4" thread

Specification:
Flash sync speed: 1/250s
4 Radio Frequency: 433MHz
Transmitter Effective range: 30m without interference
Time of shooting: up to 20,000 times
Transmitter Power: 23A 12V battery Receiver stand-by time: up to 45 hours(AAA batteries are not included)

What's in the Box:
1 x IS04-A Transmitter
2 x IS04-A Receiver with one hotshoe socket for both speedlite flash and strobe light
1 x PC sync Cable
2 x 3.5mm-3.5mm Plug Adapter
2 x 3.5mm-6.35mm Plug Adapter
Note: AAA batteries for the receiver are NOT included.