Bluetooth Headphones
Bluetooth is a digital standard of wireless communication that carries digital data. Unlike wireless technology that carries data across radio waves, bluetooth differs in the way that it transmits data from one device to another. In order for a bluetooth device to transmit data to another, they must first make a connection, or 'pair up'. Once two devices are paired up, they are free to transmit data between each other. Bluetooth devices require next to no power to operate and have the advantage of being able to transmit other forms of data as well as audio, such as text, images or data.
Bluetooth technology is ideal for headphones due to the fact that you can transmit perfect quality digital audio seamlessly from a base unit to your headphones. You will need a power supply for your headphones, but the charge required is minimal and most headphones come with rechargeable battery packs. You simply plug a transmitter into your mp3 player, plug in your headphones and you are good to go. The audio transmitted is of a perfect digital quality and as long as you invest in a decent pair, will be easily as good as anything you would get from a traditional wired pair of headphones.
So when you are buying a pair of bluetooth headphones, be prepared to spend a little bit of money as the more you are prepared to spend up front, the more you will get in return. You should look for a communciation range of at least 5 to 10 metres, meaning that your music player can be stored safely in a shirt or jean pocket or even tucked away in a rucksack. You should expect a battery life of around 10 hours or more, and if you have a compatible player invest in a unit that comes with a remote control, meaning you need never disturb your music player once you're on the move.