HIGH ACCURACY GUARANTEE - Benefiting from over 20years scale professional experience, we designed the scale with best-in-class technology and expertise, and proudly guarantee high accuracy at 0.1lb/0.05kg increment throughout the scale lifecycle.EASY TO USE - The bathroom scale utilized up-to-date digital technology, along with many friendly features, including: auto calibration, auto step-on, auto power off, delicately clear glass design with full size in 11"x 11" (280x280mm), 3*AAA batteries included, 3 unit switch: lb/kg/st, and high precision in full weighing range.SUPER HIGH CLARITY LCD - The digital scale is equipped with super high clarity LCD by extra large size:3.15x1.57in (80x40mm) in blue backlit, specialized for easily viewing numbers in any conditions, and kept the same brightness throughout batteries’ lifecycle.ORIGINAL DESIGN - The weight scale is our original design with the idea: Smiling for Our Tiny Happy Moments. Our whole team sincerely wishes it is not only the perfect scale for keeping us fit, but also keeping us smiling.BEYOND OUR DIGITAL SCALES - Our factory was established in 2001. Our first-class quality and social management system has been certified by ISO and Social Accountability. All Vitafit products are supported by our US customer service center in the heartland state Missouri. Vitafit: Inspired by Life, for Better Life. Product Description Calibrate to "0.0" 1. To avoid inaccurate weight results, please re-calibrate the scale after physically moving or shifting it or when replacing the batteries. 2. To calibrate, first step on the scale with one foot until the display lights up, then step off. The scale will show “0.0,” indicating that the calibration was successful. Weighing Measurement 1. To save energy, the bathroom scale is equipped with automatic on / off technology. 2. Remain standing evenly on the scale, without moving or shifting your feet or body. 3. Auto-off after several seconds without operation. Original Design The weight scale is our original design with the idea: Smiling for Our Tiny Happy Moments. Our whole team sincerely wishes it is not only the perfect scale for keeping us fit, but also keeping us smiling.