JJC JM-N(II) Radio Frequency Wireless Shutter Remote Control for Samsung EK-GN120 NX200 NXF1 NX1 NX Mini Galaxy NX NX30 NX1100 NX2000 NX300 NX1000 NX20 NX210 EX2F Replace ED-SR2NX02 Frequency: 16 Possible Radio Channels over 433MHz Multi-function: Wireless function supports five modes: single shot, 5 seconds delay shot, 3 continuous shots, unlimited continuous shots and bulb shot. Dual-Function Release: Press the transmitter's button half way to focus; press it fully to trigger the shutter. Delayed Release: The delay function gives you extra time to get into position. Long Exposures: With the JM-II you can control the length of the exposure remotely.