My hobby is photography and trying to get to every area of the photography. This speed light is perfect for studio or outdoor shooting in low light.Arrived in a cardboard box with a pouch, a mini stand and a very good, useful instruction manual. I have a Nikon D5100 camera so this speed light is perfect for that.It needs four AA batteries what the package does not include. It can be used attaching onto the camera or it has its own mini stand what can sit on any flat surface (table). It connects by hot-shoe to your camera or stand.At first attach the speed light to your camera or stand, make sure will not fall off. Under the LCD screen (big and visible) there is the ON/OFF button. Turn it on pressing it for few seconds. It has a self-secured system, what means if the speed light is not work for more than 30 minutes it will shut down automatically.You can set manually the brightness of the flash between 1/128 and 1/1 it depends your own requirements.It can be used as a slave too with the same bright settings (slave means camera off light; it is triggered by a built-in camera flash, a trigger or any other flash for that matter).- S1 mode: this is suitable for manual flash environment what senses every flash and synchronous main flash but cannot be used with pre-flash TTL flash system.- S2 mode: this mode ignores the pre-flash TTL flash and synchronizes with the main flash.- multi mode: it can provide you stroboscopic flash mode. You can set the flash frequency (Hz) what means number of flashes per a second). Do not use this mode more than 10 times because may overheat and damage the head.The head zoom can be set too, the value in mm.You can set the voice prompts as well, it can be turned off or on. If it is on, depends on the meaning, it gives different rings so if you learn them you can recognize easily what it want to "say".The flash tilt is rotatable, depends on your own requirements.The amount of light is adjustable by using- the built-in white reflect board (make the subject more brighter)- the built-in wide diffuser (when the distance is less than 2 meters)- the built-in white reflect and wide diffuser at the same time- lambecy (package includes).Overall I highly recommend this flashlight, I am happy with it and say is really worth the money.