【Sports Dumbbell Built-in Smart Sensor Module】Smart dumbbell built in sensor module, which can accurately identify every action you make. Recognize Movements in Real Time, Record Exercise Data. Make Exercise As Fun As Playing a Game.【Smart Dumbbell Set】Unlike most dumbbells that require multiple purchases for different weights, this all-in-one dumbbell allows you to have a versatile workout. These dumbbells can be used to sculpt your arms or tone your back. This product is perfect for improving overall health or encouraging weight loss. It can also help strengthen your upper body or core. The adjustable design makes it easy to stay fit at home.【Smooth Design】Smooth Line Design, Smooth Feel, with elegant lines to reduce friction and protect the hand, which is comfortable to grip and does not hurt your skin. One-piece Molding Process, Wear-resisting and Anti-pull; Dumbbell use of silicone is more healthy, environmentally friendly and safe, More Assured to Use. Accurate calculation of daily calorie consumption, regular training every day, combined with fitness goals to lose weight, you will get a new great body shape.【Portable Size】Small Size, Carry It with You, can be put anywhere .Take It with You to Work and Go to the Battle, Go out More Worry-free! Light and Easy to Use, High Value, Can Be Taken Back to the Office at Any Time.【Suit for Beginners and Sports lovers】 For the same amount of training time, light weights won't damage your joints and will help you burn more calories.