... iPad mini 4. No need battery Backlight Alcohol Tester for iPod touch5,iPhone5,iPad4,iPad mini Backlight ... Alcohol TesterThis product is a alcohol tester designed for iPod touch5,iPhone5,iPad4,iPad mini ... for iPhone , then press switch of tester for a while till Tester alert short buzzing, at the same ... countdown,pls let mouth close to pore under tester, and blow to air hole and exhale ...