Other considerations

Sound quality

Never has the adage "Try before you buy" been more important. Not all MP3 players have equal sound quality, so do yourself a favour and pay attention to how a device 'sings'. As you'll read further on, quality can also be aided with better headphones than the standard supplied ones, but also look for the signal-to-noise ratio (SNR) specification. You'll want a device with a SNR of at least 85 -- but a figure in the high 90's or more is even more desirable.

Batteries and external power

These days the majority of MP3 players use rechargeable internal batteries. There are still one or two models available that make use of standard AA or AAA batteries, but for the most part this is now a non-issue. These players typically charge by connecting to either an AC adapter or using a PC USB connection - similar to the way you charge your mobile phone battery. In any case, look for something that will last for at least six to eight hours. If battery life isn't listed in the specifications, ask the vendor.

An external power supply can be an excellent feature, as you won't have to run the batteries down when you're listening at home. Some players can also be powered or recharged from car cigarette lighters.

Also note, some players such as Apple's iPod, only come with a PC recharge cable in the box, so if you want to charge via a power outlet you'll need to make sure an adapter is in the sales package, or else purchase one from a third party.

Particularly with hard disk MP3 players, you'll want to check if the player you are buying has a replaceable, rechargeable battery. If it doesn't it means that as your model gets a few years old and the time between charges gradually shortens, you'll need to buy a new player or pay to have the battery replaced.