JJC TM-F2 Multi-functional Timer Remote Control is designed to function as a timer remote and an intervalometer It is excellent for flower blooming sunset moonrise etc photography The remote is equipped to handle a long list of timer functions self-timer long exposure timer interval timer as well as controlling the number of shots An exposure as long as 99 hours 59 minutes and 59 seconds can be programmed and number of exposures is up to 399 or unlimited Just press the buttons settings will display on the LCD screen There is backlight on the LCD that allows night vision The multi-function timer remote can also be used as a shutter release cable Press halfway to focus press full to trigger shutter when taking long exposure pictures pushing the shutter button up will lock the camera shutter The remote also helps prevent camera shaking and allows you to take self-portraits All the features of TM remote makes it a good helper for you to take creative pictures Weight 98 grams Length 90cm Fits Sony A7 A7 II A7 III A7R A7R II A7R III A7S A7S II A9 A9 II A3000 A3500 A5000 A5100 A6000 A6500 A6300 A6400 A6500 A6600 RX100 RX10 RX1R series