JJC JM-N II Wireless Shutter Release For Wireless Shutter Release For Samsung NX Mini NX30 Galaxy NX NX1100 NX2000 NX300 NX1000 NX20 NX210 EX2F Replaces Samsung ED-SR2NX02 JJC JM-I2 II Wireless Shutter Release For Samsung NX Mini NX30 Galaxy NX NX1100 NX2000 NX300 NX1000 NX20 NX210 EX2F Replaces Samsung ED-SR2NX02 JJC JM-N II Series Radio Frequency Wireless Shutter is designed for most DSLR and SLR cameras that have a remote socket on the camera body. The system works at a 433MHZ frequency and has 16 available channels. Whats more, this wireless remote system adopts a technology to allow the transmitter trigger the receiver without direct line of sight up to 30 meters.