Product Description Function: The digital bathroom scale can help you more accurately observe your body changes, monitor your health and weight changes at any time. Specification: Item Type: Smart Scale Product Size: Approx. 30 x 26 cm / 11.81 x 10.24 inches Weighing Range: Approx. 3 ~ 180 kg / 6.6 ~ 396.8 lbs Power Supply: 4 AAA batteries (not included) Function: Can measure muscle rate, water, visceral fat, bone mass, fat index, BMI, body age, obesity, body score, fat mass, basal metabolism, mass value, protein, water content, obesity, muscle mass, slim figure body weight - 17 body data. How to Use: 1. Battery Installation (not included): The new scale requires you to install the battery for the first time, paying attention to the battery's positive and negative positions. 2. Install Mobile Application: A. Turn on Bluetooth on your phone. B. Mobile phone connection (Wi-Fi, 3G, or 4G recommended). C. Download and install the app, or search for the app name "OKOK" to download the app. 3. Link devices, register, and improve your information. 4. Data Measurement: A. When weighing, to avoid affecting weighing accuracy, place the scale on hard, flat surfaces and do not place the product on a carpet or soft surface. Ensure there are no foreign objects on the bottom before weighing. B. Stand barefoot on the scale and maintain good contact with the sensing area when measuring. Since the amount of fat needs to be calculated, do not step off the scale if the measurement time exceeds 5 seconds. 5. Display measurement results. Package List: 1 x Smart Scale