Basketball mode - attaches to the shoe, 5 ATM waterproof. Bracelet made of environmentally friendly materials, PMOLED screen. Two weeks of battery life, professional guidance of running posture. Battery: 77 mAh (20 days standby), compatible with Android 4.4 and above, iOS 9.0 and above. Box contents: 1 x strap, 1 x charging cable, 1 x charging station, 1 x user manual (English language not guaranteed).