The Mijia Smart Dumbbell is an elegant dumbbell that can quickly switch weights. Just rotate the weight to separate the handle and easily switch between 1kg and 2kg. It is suitable for female sports users to perform aerobic training and light weight anaerobic exercise.6-axis sensor tracks reps, Mi App syncs real-time data & video coaching.Rotating to cut 1kg/2kg in seconds, ergonomic handle and non-round anti-roll body.Press-access battery compartment for easy AA swaps (6-month life).