Gallery Clip-on Accessory Use the clip-on accessory with your phone. Two Colors Two color options available. Ask your own color. Quick checkup Conduct a quick checkup anytime anywhere. User Friendly Application The application can be used even without the support of a technician or a medical personnel. Language-independent user instructions included. Safe and accurate Rest assured as the device is reliable, safe and accurate. Portable and Light The compact size makes it light and portable with durable materials. Prompt installation Just plug in the device, install the app, calibrate it for accuracy and you can use it, no battery needed. Free mobile app download is included to the product package.