Compatible with(cyue-tech featured): Windows xp, vista, windows7 32-bit & 64-bit, osx operating systems. Pc with easy obd-ii, scanmaster elm, wobd crazy and so on. Handheld equipments (suggested android smart phones) with os, android, symbian, windows mb etc. Compatible protocols: ISO15765-4/SAE J2480 (can bus), ISO14230-4(kwp2000), ISO9141-2, J1850 VPW, j1850 pwm.