Description: It can detect temperature, conduct SOS, call alarm, finish remote monitoring environment and call firewall. It is very convenient to have dynamic desktop, flashlight, message hint, suppor more→t LBS and provide date and voice call service. The item is made of silicone which is soft and durable to use. The length is 5.4cm, the width is 4.5cm, the height is 1.45cm. It is very suitable for running, climbing, hiking, and so on. Item Name: Smart Watch Material:Silicone Crowd: Kid Batteries: Built-in 400mAh Rechargeable Battery (Included) Charging Time: 2h Battery Capacity: 400mAh (Included) Waterproof Grade: IP67 Chip: RDA8955 Color: Pink Color, Blue Color, Red Color Standby Time: 70h