Cable with 2 Infrared LEDs if you intend to use infrared control method of the 2 cameras simultaneously (both branches have length 27cm/10.6″ – 8g). Suitable for many Canon/Nikon/Sony/Pentax cameras and camcorders. For example it can control movie recording and shutter release simultaneously on 2 Sony NEX-5/6/7 and A35/A57/A65/A77 DSLR cameras.