Connects to all Apple 30-pin productsEasy to view LCD displayQuickly and accurately measure blood alcohol levelNo need for blowpipe, just blow into air hole for a cleaner, healthier usageDetects cigarette, coffee, and other smells of non-alcohol gas to eliminate false resultsIMPORTANT: unit must recalibrate for at least 5-10 minutes after each use before next test can take place.White