Features *1 MILLION + HAPPY USERS AND COUNTING - Yunmai is tracking body statistics for more than 1 Million customers. World Leading Smart Scale Brand. *10 PRECISION BODY MEASUREMENTS - Accuracy makes us the best body fat analyzer with up to 10 different body composition statics, including weight, BMI, BMR, hydration, bone mass and more - all for better weight loss management. *FREE PROFESSIONAL APP (iOS & Android) - New app version 2.0 still PENDING on approval to Sync with Apple health, shows all weighing records and run chart for all body measurements. *BLUETOOTH 4.0 CONNECTIVITY - With smart step technology and real-time updates through Bluetooth 4.0, you can use the included free app to automatically track results with your iPhone or Samsung Galaxy and crush that diet plan. *MASSIVE 16 USERS TRACKING MANAGEMENT & Sleek, Strong Design - Yunmai scale tracks up to 16 users at a time that works flawlessly with the app. Break down fat loss and fortify exercise routines with individualized graphs and charts. More than a high-quality fat loss tracker, it also boasts crystal clear 3.3 INCH LCD display, and artistic industrial design for truly beautiful bathroom and home decor. Details Wireless Bluetooth 4.0 Connectivity (Includes App) Weight Tracking Management for 16 Users Vibrant LCD Display Smart-Step Technology Supports Android 4.3 and iOS 7 Power: Four (4) AAA Batteries (Not Included) Scale Range: Up to 396.8 lbs. (3-180 kg) Measurements Include: Weight, Body Fat, Body Mass Index (BMI), BMR, Bone Mass, Hydration Levels, Muscle Mass and Body Age. Protect your health with a comprehensive weight loss scale that helps you reach your weight loss goals by clicking - Add to Cart - now! Not recommended for pacemaker user or pregnant women.