Overview: Nice PT-04A 4 channels FM Receiver for Wireless Flash Trigger Studio Notice: The item must use with the " Transmitter" togetherthe transmitter of Nice brand can trigger all the reciever as long as it is Nice br&, eg. 4 Channel Transmitter can trigger the reciever from DC-01A, AC-01A, DC-02A, AC-02A, DC-04A, AC-04A, PT-04A, DC-16A, AC-16A;eg. 4 Channel Transmitter can trigger 16 Channel Receiver, but only work on 4 channels from the receiver (you have to find from the 16 Channel of the Receiver to see which 4 channels is work on). Introduction The brand is called Nice. The remote trigger for studio flashes & outdoor flash is used as the controller of synchronous trigger studio flash of cameras. It consists of a signal sender & a receiver trigger & works by means of the frequency modulation wireless remote control. The signal transmitter adopts the advanced circuit & components, & can transmit the coded FM wireless signa. The circuit of the transmitter has the function of standby & hibernation, thus it has low power consumption; the products can work under the standby mode for more than one year with only one battery; continuously trigger for thirty thousand times. the trigger current is only 0.01MA, which will definitely cause no damage to the flash contact of the camera. The transmitter is applicable to the traditional or digital camera with hot shoe or PC controlling interface. Receiver trigger adopts dry battery for power supply, which is safe, energy-saving, & convenient. The product adopts micro-computer for controlling the decoding, Which has superior anti-interference capability; sensitive reaction speed, the highest synchronous speed can reach 1/500 sec. All the models of the product uniquely have the multi-frequency isolation technique & the self coding matching function by users. Users can freely match & use the sender & the receiver according to the demands, which have four isolated channels to suit for specific shooting environments. Triggers set in different channels can be combined to work or independently work but do not interfere with each other in an efficient distance. Technique Parameter: Transmitter Receiver Power Source 23A AC 100-230V Outdoor operating distance (open area) gt;30M Indoor operating distance gt;10M Frequency Channel 4 Operating Frequency 433 Mhz Outdoor Synchronous Speed (open area) Max 1/500sec Indoor Synchronous Speed Max 1/250sec How to use:• Make sure the channel selector of both transmitter & receiver at same position• Insert your flash hot shoe socket into the receiver's hot shoe jack• Press the test button on your transmitter. The Flash should now flash• Insert the transmitter's hot shoe socket into your camera's hot shoe jack• (if your camera does not have a hot shoe use a PC sync cord & insert into the socket)• You should now be ready to start shooting Suitable For-Canon Speed Lite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX/EXII, 430EZ, 420EX, 420EZ, 380EX;-Nikon Speed Light 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, 355 A Fm 344D, 333D;-Vivitar 285HV (Older Vivitar 285/283 works only with PC sync);-Other flash models with a trigger voltage of 12V or lower;-Work with flash units using universal hot shoe like Nikon, Sigma, Olympus, Pentax (except Minolta SONY as they use a special hot shoe).the transmitter of DSLRKIT brand can trigger all the reciever as long as it is DSLRKIT br&, eg. 4 Channel Transmitter can trigger the reciever from DC-01A, AC-01A, DC-02A, AC-02A, DC-04A, AC-04A, PT-04A, DC-16A, AC-16A; 16 Channel Transmitter can trigger the reciever from DC-01A, AC-01A, DC-02A, AC-02A, DC-04A, AC-04A, PT-04A, DC-16A, AC-16A;eg. 4 Channel Transmitter can trigger 16 Channel Receiver, but only work on 4 channels from the receiver (you have to find from the 16 Channel of the Receiver to see which 4 channels is work on).eg. 16 Channel Transmitter can trigger 4 Channel Receiver, but only work on 4 channels from the transmitter (you have to find from the 16 Channel of the Transmitter to see which 4 channels is work on).eg. 4 Channel Transmitter can trigger 1 Channel Receiver, but only work on 4 channels from the receiver (you have to find from the 1 Channel of the Transmitter to see which 4 channels is work on).eg. 1 Channel Transmitter can trigger 4 Channel Receiver, but only work on 1 channels from the transmitter (you have to find from the 4 Channel of the Receiver to see which 4 channels is work on). Specification: Weight Approx:54g Size Approx:11.5 x 6.5 x 2.5