YONGNUO RF-603 II, the manual Flash trigger and shutter release ( you can use those two functions simultaneity ), it adopts a global free FSK 2.4GHz wireless channel which can be suitable in many countries. RF-603 II with FSK system, can be more effective to guarantee speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m, and is suitable for the first generation RF-603.

Improved Features:

●Higher sync speed than the first generation
   The highest flash sync speed up to 1/320 second (some of models may only reach to 1/250s or less, difference combination of models of flash and camera using may achieved difference flash sync speed).
●Adding the Locking rings
●Improved Flash / Shutter control Buttons
●Suit for first generation, you can use them together.
●Working for more non Canon/Nikon cameras and single firing pin cameras 
 ALL Standard Hot shoe DSLR Camera except Sony and Minolta.
Note: Canon cameras choose RF-603 II Canon version, Nikon Camera choose RF-603 II Nikon version, other cameras can choose any version.
●Adding the power switch for single transmitter
   Set the power switch on TX (single transmit) or TRX (transmit-receive automatic switch) state according to different shooting requirement. 
   When it used as wireless triggering transmitter and flash testing, set to "TX"; 
   When it used as wireless triggering receiver, using shutter release or other extended functions, set to "TRX".
   set to OFF means turn off the power.

Functions:

(1)Remote Shutter Release

1. Wireless Remote Shutter Release ( On camera )--- You can mount one receiver into the camera and connect it with the camera via the 2.5mm shutter connecting cable, and can remote control the camera with other receiver. You can use it to fulfill the function of Auto-Focus, Continuous shooting, Long Exposure, Half-Way Pressing, Full-way Pressing and Bulb.
2. Remote Shutter Release ( off Camera )--- You can use the single receiver to fulfill the function of remote shutter release after you connect it with your camera via the 2.5mm cable.
Note: This product can achieve wired /wireless remote shutter release function, need to LS-2.5 series shutter connecting cable(or purchase) according to the different cameras. When using the shutter release, the power switch need to set in”TRX” state.
(2)Flash Trigger
1. To fire the Flash Speedlite --- one receiver can fire one flash speedlite, one set of RF-603 can control 2pcs Flash Speedlite at the same time.
2. To fire the Studio Strobe light --- You need to purchase an extra 6.35mm cable
3. You can use ABOVE TWO FUNCTIONS simultaneousty
4. The RF-603 II Nikon version and Canon version can be used together

Specification:

Type: FSK 2.4GHz wireless remote sustem

Transmitter Distance: 100M

Channel: 16 Channels

Release: Half-way press, Full-way Press

Receiver Interface: One is 2.5mm Socket, for shutter release

One is standard PC socket for flash Speedlite or studio Strobe

Battery Type: AAA*2 (NO included battery)

Receiver Stand-by time: Up to 45hours 

Size: 37 x 30 x 81.5mm (Dx Wx H)

Suit for Flash Speedlite with " Sleep mode" function:

1.Nikon 2.Canon 3.Olympus 4.Pentax 5.Samsung

6. Yongnuo YN-460, YN-460 II, YN-560II, YN-46 II, YN-468 II, YN-565EX, YN-568EX in manual mode 

7. Yongnuo YN-560 III ( it has built-in receiver ), you can use one RF-603 II transceiver to work with it.

And other flashgun which has " Wake up " function

For this RF-603 II, we have four versions, different version has different shutter release cable, you can choose the related cable to fit for your camera.

Suitable For N1 Version:
--- D800E / D800 / D700 / D300 / D2X / D2H / D200 / D1H / D1X / D3X / D3 / D4
--- N90s / F5 / F6 / F100
---Fuji Film: S5 Pro / S3 Pro

---Kodak: DSC-14N

Packaged Included: 

1 x Tranceiver

1 x Receiver
1 x Shutter release cable for N1
1 x English Manual