Battery-free bathroom scale, smart, high precision, and bioimpedance function. EcoPower. Does not use batteries. By pressing the Eco Power push button, electrical energy required in order to operate is automatically generated, which makes it more environmentally-friendly. BIA: Bioelectrical impedance measuring method (BIA) with full body analysis through 6 basic parameters: weight, body fat, muscle mass, bone, water and body mass index (BMI). UserClever: Saves parameters of 4 users, for you to check previous results and track your progress. Four Precision. Its 4 high-precision sensors allow more precise and exact measuring. Wide measuring range, from 8 kg to 180 kg, with a 100-g precision. Easy Usability. Easy usability thanks to the auto shut-off function, the fast and simple power-on and its overload indicator. High-security and extraflat design made of tempered glass. Easy and comfortable result viewing with its large-sized LCD display. It has automatic restart function. SafeGrip. Includes 4 support feet that improve floor grip and add security. Auto shut-off after 3 seconds of no use. Button to switch from Kg to Lb. Tape measure, instruction manual, product