In addition to music stored on your phone, tablet, or computer, online music services like Spotify, Last FM, and internet radio stations can be experienced in stunning quality. If your smartphone or tablet supports the aptX audio enhancement CODEC, the audio will be broadcast wirelessly in significantly higher quality than standard Bluetooth. You'll instantly notice a more extensive dynamic range, deeper bass, and a crystal-clear top end. AptX codec has a fixed performance standard to guarantee a consistently excellent quality when music data is transferred wirelessly over Bluetooth. With almost CD-quality reproduction, you'll notice significantly greater dynamics and more detail.