The SM10 is a Bluetooth stereo audio adapter based on Bluetooth 2.1+EDR technology. You can connect various audio devices such as mobile phone or MP3 player by using the SM10. It also supports onboard audio systems of specific brands by using optional audio cables. Along with the dual streaming feature of SM10, both you and your passenger may listen to the same music or radio at the same time by using Bluetooth headsets in the market. The SM10 has AUX audio input that enables you to connect additional non-Bluetooth audio devices such as GPS navigation.