It will be able to set timer delays, exposure times and intervals up to 99+ hours in increments as short as 1 second. This added functionality of exposure control allows continuous shooting (1 to 399 continuous shots or set for “unlimited”), self-timer, long exposure times (up to 99 hours, 59 minutes and 59 seconds) as well as interval shooting. | It can be used without batteries as a simple manual remote shutter release. Simply push the shutter button halfway to focus and fully to shoot. In bulb mode, slide the shutter release button forward to lock and slide it backward to release. | The four-line backlit LCD display panel can be illuminated and gives you a visual reference to ensure the following functions: self-timer, exposure, interval, and number of shots. It also is a status indicator for timer functions, lock indicator, number of shots etc. | The Power Off option which gives the ability to power the device off to conserve battery life and a LOCK button allows you to lock the remote to prevent from accidental stopping the shoot. | 5.It replaces Olympus RM-CB2 for Olympus OM System OM-5, OM-1, OM-D E-M5 Mark III, E-M1 Mark III, E-M1 Mark II and OM-D E-M1x.