With the AKG Y500 you enjoy a detailed sound reproduction at home and on the go. With these Bluetooth headphones you can stream music wirelessly from a smartphone or tablet. As a result, there is no cable in the way. The headphones play the AAC file type. AAC files achieve better sound quality than is possible with mp3s. This means you hear more details in your music. When you are on the move, Ambient Aware technology allows ambient noise to pass through. This means that you are aware of your environment. So you still safely participate in traffic when you are on the bike for example. Thanks to the fast charge function, you can listen to music for 1 hour after 5 minutes of charging. This means you never leave your house without a full battery.