PT-4GY Wireless 4 Channel Flash Trigger With 2 Receiver For Nikon Canon Olympus Pentax<br>Description:<br>The WANSEN PT-4GY Wireless Flash Trigger Suitable for Nikon Canon Olympus Pentax Sigma， Sunpak， often use the top load flash photographer. A major role in the realization of different brands on camera flash off camera， light and convenient photographer.<br>Feature:<br>1. Receiver power supply for the 2 AAA batteries2. Transmitter with built-in 12V battery， full standby3. 1\/4 Nut with a tripod， fixtures can closely connected4. External FM switch， convenient and fast transform channel5. Overall design of moderate height， not by the trigger high and affects the shot6. Emission head with a built-in 23A-12V battery and also can be used 10000 times7. Effective trigger distance of 30 meters， the maximum sync speed of 1\/250 seconds8. Receiver metal hot shoe seat tapping fastening.To prevent loosening， safety protection flash9. Contact semi spherical transmitter design hot shoe seat， to avoid scratching the camera contact10. Receiver employs a conventional AAA battery as the power source， convenient purchase replacement<br>Specification:<br>Channel: 4 channelsWork frenquency :433MLarge work distance: 30mOutdoor working distance: max. 30mIndoor operating distance: max. 25mBattery of transmitter: 23A-12V mini batterBattery of transmitter: AAA alkaline batteryReceiver battery: 2 x 1.5V-AAA (7 alkaline battery)Matrial : Original plastic die forming (ABS resin) \/ Metal hot shoe seat (Except PT-04S1)<br>Suitable For:<br>Transmitter Works with Hot Shoe Cameras(both DC and DSLR Cameras) using universal hot shoe Such as Canon， Nikon， Pentax Panasonic， Fujifilm， Olympus， Leica， Sigma， Samsung etc. (except Sony and Minolta Cameras as they use a special hot shoe)，Other flash models with a trigger voltage of 12V or lower.<br>          Olympus       FL-50R， FL-50， FL-36R， FL-36           Pentax       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， 355AF， 344D， 333D           Nikon       SB900， SB-800， SB-600， SB-28， SB-27， SB-26， SB-25， SB-24           Canon       580EX II， 580EX， 550EX， 540EZ， 520EZ， 430EZ， 430EX， 430EX II， 420EX， 420EZ 380EX   <br>Different Compare PT-04GY &amp;amp; PT-16GY<br>1.The appearance of the same.2. Difference is how much of the problem of channel coding:a: 2 group of switches have 4 kinds of combination named PT-04GY，b: PT-16 four groups of switch， there are 16 combination named PT-16GY3. They can not be mixed general4. What channel is refers to the can at most how many people can use the same situation again does not interfere with other people of the flash to turn off the lights， PT - 04GY at most four， PT - 16GY up to 16.<br>Package included:<br>1 x 4-channel Transmitter(23A 12V battery included)2 x 4-channel Receiver(AAA batteries NOT included)1 x PC Sync Cord(2.5mm to PC)1