Oraimo SmartScale OPC-SC20 is a digital full-body composition monitor that tracks 18 key fitness metrics.Key Features18 Fitness Metrics: Measures weight, BMI, body fat rate, muscle mass, visceral fat, bone mass, BMR, and metabolic age.Hidden LED Display: Features a digital screen that displays numbers in real time and disappears when not in use.App Integration: Connects via low-latency Bluetooth to sync data directly to the Oraimo Home app for tracking progress.Build Quality: Uses a 5mm tempered glass surface with a skid-resistant base and rounded edges.Power: Runs on AAA dry batteries with a DC 4.5V rated voltage.