Cowboystudio UNPT-04, 4 Channel Wireless Hot Shoe Flash Trigger and Receiver Set with Umbrella Holder for Canon EOS, Nikon, Olympus & Pentax Flashes
The CowboyStudio FM 4 Channel Radio Trigger and Receiver Set is designed for photographic studio and on-location work to trigger various flash lights. The transmitter is attached on the hot shoe of the camera while the receiver is plugged into the studio flash, and each receiver works with one studio flash.Radio triggers are best for photographers interested in range and reliability outdoors.  It is also your best option if you want to have off-camera flash inside cars or behind furniture.Unlike the standard NPT-04 trigger, the UNPT-04 trigger has a built-in umbrella holder. Additional NPT-04 receivers are available on our site.Specifications4 channels to avoid interferenceThe receiver has an on/off switch, and an LED to indicate triggeringA standard 1/4in screw mountChannel Selector outside the transmitter and the receiver4 channels with hot shoe connector for external flashesTransmitter Power: 23A 12V battery Receiver Power: 2 AAA Battery (Not included)Maximum Working Distance: 30m (open area, without interference)Max available in distance range: 30M (Open fields, no fraise)Operates on Frequency: 433MHzHighest responding time up to 1/320sTriggering life: up to 20,000 timesTrigger can operate additional NPT-04 receivers (available in our store)Compatible models:-Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX, 430EZ, 420EX, 420EZ, 380EX;-Nikon SpeedLight SB-800, SB-28, SB-27, SB-26, SB-25, SB-24;-Olympus FL-50R, FL-50, FL-36R, FL-36;-Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT;-Sigma EF-530 DG Super, EF-500 DG Super, EF-430;-Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D;-Vivitar 285HV, DF-400MZ, DF-340MZ, 2700;-Other flash models with a trigger voltage of 12V or lower.Directions:1. Load batteries of the flash and turn on the switch and the charge switch to charge the flash.2. Turn the dig switches of the sender and receiver to the same position.3. Open the battery gate of the receiver and load the battery.4. Press the power switch of the receiver downwards to the ON position.5. Fix the receiver on the tripod head or flash holder.6. Install the flash tested on the hot shoe stand of the receiver.7. Press the test button of the sender.8. Insert the hot shoe of the sender into the hot shoe socket of the camera.9. If the camera is not equipped with the hot shoe socket, then use the synchcord.