NEEWER RT-16 Wireless Trigger for S101 Studio Flash

Features Compatible with Neewer S101-300W, S101-400W, and Other Studio Lights This wireless trigger is control discreteness for the camera to trigger the hot shoe flashgun synchronously. Easy installation, low power consumption No damage to the camera. High-speed and synchronous for 1/200 second. Max. working distance: 30M (open area, without interference). 16 channels to avoid interference. The receiver has an on/off switch, and an LED to indicate triggering. New design: Channel Selector outside the transmitter and the receiver. Specification Wireless Flash Trigger. 16 channels selectable. Power Input of Transmitter: 23A 12V battery (included). Power Input of Receiver: 2 AAA batteries. Long lifetime of trigger battery, one year or over 20,000 continuously triggers. Plug size of receiver: 3.5mm. Adapter size for receiver plug: 3.5mm --> 6.35mm. PC sync cable included. Radio working frequency: 433MHz. How to use Make sure the channel selector of both transmitters and receivers