CHEERLINK Mini ELM327 V2.1(bluetooth version) Bluetooth OBD 2 Automotive Diagnostics Scanner for Android V1.5 firmware,New version V2.1 bluetooth.CANNOT work with diesel vehicleNew version v2.1.Connect to an Android Smartphone using one of the many free compatible apps or a Bluetooth enabled computer using the supplied software Protocols support:ISO9141-2 5 baud init,ISO14230,ISO15765,J1939,CAN_USER1,CAN_USER2 Package includes: 1 * ELM327 Bluetooth OBD2 Scanner Tool ,1 * CD Drive Note: This product comes with CD-ROM, during installation the driver, maybe anti-virus software will warning it has Trojan horse virus. In fact, it's not virus, the anti-virus software does not recognize the driver which must be installed. In order to install the driver successfully, we should close all firewalls before installation. We can open them again after the installation is finished.