The MSF-628 is designed for cameras with a remote shutter socket. The remote controller allows you to control the camera from afar when shooting, so it also prevents camera shake. The unit includes three parts: transmitter, receiver and a connecting cable. The receiver is powered by two AAA lithium batteries (included) and the transmitter is powered by a CR2032 battery (Included). The controller can trigger the camera shutter in five modes: single shot, unlimited continuous shots, bulb shot, 3 continuous shots and 5 seconds delay shot. What's more, the transmitter is able to fire multiple receivers at the same time, so you can control more than one camera to take photos simultaneously. In addition, the receiver itself with the connecting cable can be used as a wired remote switch.The transmitter and receiver can be paired easily by any one of 16,000000channels through smart code. This system works at a 2.4Ghz frequency allowing the transmitter to trigger the receiver and then your camera shutter without direct line of sight up to 100 metres. The receiver has a universal 0.6cm -20 tripod mount socket on the bottom, so you can even mount it onto a tripod. All these features make it your best partner when you take photos by remote and is excellent for wildlife photography and other. Camera not included in this sale.