... stripe reader that communicates with mobile devices via the audio headphone jack. Use your mobile device to read ... , include: key features, specifications, etc.2.FeaturesVarious interfaces: Audio headphone jack, Bluetooth , mini USB interface ,USB OTG ... machine (spare)12nAMore than ten yearspower on100uA1800 hoursSend the command3mA60 hoursswiping card3.2mA56 hoursOperating System SupportiOS, Android, ...