Check the listing for details. Smart Scale with BMI Body Fat Muscle Mass Bluetooth Digital Privacy Bathroom. Condition: New, Made in China. Listed at 33.65 USD. Smart Scale with BMI Body Fat Muscle Mass Bluetooth Digital Privacy Bathroom Scale for Body Weight Weighing Machine for People with App, Anti-Peeking Screen Invisible Outside 6Ft. Second Way to Protect Your Data with the Privacy Screen Mode: The LCD display features a Privacy Screen, which makes the reading is visible or invisible based on user’s height and distance---For instance-- User who’s 1.8M (5.91 FT) tall, reading is blurry and visible within the distance range 4.92 to 6 FT (1.5-1.8m) around the scale; Conversely, it’s is invisible outside the distance of 6 FT/1.8m for any users in any tall(! ).