ARKON RWIPC GPS Car Kit and Powered Docking Mount with Bluetooth for iPhone and iPod Touch Compatible with the following: iPhone 4S, 4, 3GS, iPod touch 3rd & 2nd gen Adds GPS to your iPod touch and enhances iPhone GPS Charges your iPhone or iPod touch while in use Bluetooth with external 2w speaker Audio line out Can be used with most cases or skins Compatible with Apple iPhone and iPod Touch Integrated Sirf III GPS Bluetooth hands free with noise cancelling Works with devices with or without a case or sleeve Super strong windshield mount and optional dash mount option