The KW-R910BT is a car stereo which offers wireless and wired connections to playback your music and channel sound. With the bluetooth technology (built in) a wireless connection can be established between the stereo and devices like smartphones, ipods and iphones to either play music you have stored on your device or have a hands-free call with someone. If you prefer a wired connection, there is always the option of connecting via AUX or USB and by connecting the USB it will charge the device at the same time. Both Pandora and iHeartRadio can be used via Android (Wireless) or iPhone (USB) connection. A nice design aspect to the KW-R910BT is that you are able to select variable colour illumination along side mood blenders and brightness controls to make it really stand out.