Specifications Weight: 385 g Size: 24 x 16 x 4 cm (approx) Silver Height: 100-199.5 cm Weight: 10-199.8 kg Age: 10-99 years old Gender: Male, Female Temperature of use: -10 C to +40 C. Storage temperature and humidity: -20 to 60 C Package includes: 1 x Handheld Digital Body Fat Analyzer Health Monitor Wireless, handheld, lightweight, portable, easy to carry and use. Body fat percentage is calculated using five data points: height, weight, age, gender, and the resistance value between two palms. Features a large, easy-to-read liquid crystal display. Personal profile setup and memory allows for quick and easy monitoring. Supports 9-person profile memory. Displays accurate results in 6 seconds. Measures your body fat percentage, BMI, body shape, and basic metabolism. After inputting your personal data, start a measurement by simply holding the grip electrodes and pressing the start button. With a nine-person profile memory, every family member or team member can track their individual exercise progress. Body shape categories include: emaciated, standard, slightly overweight, muscular, and overweight. Energy-saving with an auto shut-down function. Power supply: 2 AAA batteries (not included) Not only a recommended household device, but also a perfect gift for friends and family. Note: For special groups, such as athletes and pregnant women, body fat percentage and BMI may not accurately reflect obesity.