Yes, you can play any of the recordings more slowly. Simply click on the tortoise image, and the recording will play at slow speed. The tortoise is well-known for being slow:
In addition, if you are looking at a phrase (something made up of more than one word), then you can listen to each of the individual words in that phrase using the Literal Breakdown section. As well as being able to play the individual words manually in the Literal Breakdown, there is a special "Play all" button which will play each of the entries in the Literal Breakdown automatically one after another. It is often easier to understand what is said in a complex phrase by listening to each of the individual words separately.