First of all, you will have to download and install iTunes or an alternative to load this player with music. You are able to drag and drop data, but doing the same with music won't work.
I won't be going into much depth when it comes to an iTunes tutorial seeing we have already covered iTunes 7 in a separate review HERE. I do have to say, for a product as simple as the Shuffle, iTunes is a little bit of an overkill for basic music loading and unloading. But it does have a handy update feature which does seamlessly update your iPod firmware so I would install it, but you don't have to use it. There are various iTunes alternatives on the market that support the iPod and can be a lot easier to use. Through some research I was able to find a blog where they reviewed and documented every current iTunes alternative on the market and the advantages and disadvantages of each. You can find that blog HERE.
After a couple weeks testing this player around the house and at the gym, I personally LOVE this product. For the size and price, you really couldn't ask for much more in a basic MP3 player. The sound was crystal clear even when testing using expensive studio headphones, and the capacity and battery life should be enough for any MP3 listening needs. The battery life for this product at 12 hours is phenomenal. I personally was able to stretch that an additional 2 hours to 14 hours before I couldn't use the player anymore. So technically, one four hour charge is good for a week's worth of working out at two hours a day.
And let's also keep in mind how robust this product will be when compared to an MP3 player with a LCD screen. The LCD screen is always the weak point for failure and with that one weak point removed, you have greatly increased the ability of a product to withstand an accident or rough handling.
Now there isn't a way to change the equalizer setting directly on the player, but you can change the equalizer of the stored songs in iTunes. I found an easy how-to on that HERE. Personally, the stock setting was perfect for me. Most earbuds can't handle overboosted bass settings and will distort. I am a bass freak and the stock setting was good enough for me.