Wireless radio and IR Flash receiver ctr-301P - $45

CTR-301 Version New Design/Features:

Built in IR and radio flash trigger receiver

* More stable, no misfiring
* Tested and should be compatible with most of the flash guns such as Canon 580/430EX, Nikon SB600/800/900
* Work on either L mode and W mode.
* L mode - built-in sensor to sense the main flash to trigger the slave flash attached on the receiver.
* W mode - using RF (4 channels available) to communicate between the transmitter and the receiver.

Features:
* Using W mode, there are more than one receivers can be triggered by single transmitter.
* Using L mode, multiple receivers can be triggered by the main flash.
* The receivers can be mounted on the tripod.

Supported Modes: Manual, Non TTL Auto

Specification:
* Reciver power 1x CR2 batteries
* Frequency: 433MHz
* W Mode Effective range: 30m without interference
* L Mode Effective range: 10m

Compatible with

Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX, 430EZ, 420EX, 420EZ, 380EX;

Nikon SpeedLight SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24;

Olympus FL-50, FL36;

Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT; Sigma EF-500 DG Super, EF-500 DG ST, EF-430;

Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D;

Vivitar 285HV

Other flash models with a trigger voltage of 12V or lower;

Whats in the box

* 1x Reciever (CR2 batteries included)
* 1x Transmitter (23A 12V battery included)
* 1x English Manual.