The fact that you can use the flash, both internal and external, and even includes an integrated receiver, you have with this product is a great package. Of course, you need to is also a transmitter that corresponds to it.
It also has many settings you can control the force and angle of the flash and zoom. Beginners have to fight through in every case once through the basics, but you understand the principle of it very quickly. Overall, the Yongnuo a product of very high quality for less money.