JW JM-F2(II) Wireless Shutter Release For Sony A58 NEX-3NL A7 A7R A7S A3000 A5000 A6000 HX300 HX50V RX100II RX100III + JW emall Micro Fiber Cleaning Cloth Frequency:16 Possible Radio Channels over 433MHz ;Multi-function:Trigger your camera wireless or wired. Wireless function supports five modes: single shot, 5 seconds delay shot, 3 continuous shots, unlimited continuous shots and bulb shot. Wired triggering allows you half press to focus, fully press to take photo, and wired triggering works even if the receiver battery is dead or missing. Delayed Release:The delay function gives you extra time to get into position. LED Indicators:Two LED indicators confirm pre-focus and exposure when in the wireless mode. Dual-Function Release:Press the transmitter's button half way to focus; press it fully to trigger the shutter Long Exposures:With the JM-F2(II) you can control the length of the exposure remotely.