Kiwi Wifi is a plug and play wireless device measuring only 2.75 x 1.25 x 0.6 inches. Kiwi Wifi comes attached with a 6 ft OBDII cable for easy installation. It also comes included with a power switch built-in to prevent the need for having to constantly disconnect your unit from the OBDII port. It is compatible with 1996 and later vehicles. Connecting to your iPhone / iPod touch is made by 802.11a/b/g connection in adHoc mode. This unit is upgradeable to Kiwi Wifi + iMFD.