Phottix
Ares II Flash Trigger Transmitter
Wireless Trigger Transmitter
Wirelessly trigger your flashes using the Ares II Flash Trigger Transmitter from Phottix. Once connected, it can be used to trigger a separately available Ares II receiver from a distance of up to 150 metres.
The system uses a 2.4 GHz frequency to limit interference as well as access to 16 channels, the first four of which will support Strato II receivers as well, 4 groups, and digital ID codes so that it won't be accidentally tripped by other setups. It has a max sync speed of 1/250 second and is equipped with a backlit LCD for checking and changing settings. It runs on two AA batteries.