Description of Neewer CT-16 Wireless Radio Flash Speedlite Studio Trigger: Ideal for Canon Nikon Pentax Olympus Panasonic DSLR Cameras
433MHz transmit frequency secures fast response and stable transmission. 16 channels, transmitting distance up to 30m, no limits with directions or angles. Work with the receiver, the transmitter (not included) can trigger most sorts of camera studio flashes. Maximum synchronous speed up to 1/250 second. With Umbrella input, the trigger can connect soft umbrella (flash and soft umbrella not included)