Fig. 4. Men's Loupe (Tenga Health Care) device and smartphone-based SEEM kit. (A) Men's Loupe 0.8 mm diameter ball lens microscope attached to smartphone. (B) Technique for loading semen sample into plastic jacket of ball lens microscope. (C) Magnifying lens semen analysis device with QR code sheet to download the application for operating. (D) Instructions of kit for use. (E) Screenshot of sample test results with concentration and motility.