Description About Product Activity Records: record daily calories, distance, quantity, count, step pedometer, activity duration; Sleep Monitor: automatic monitoring sleep duration and sleep quality, sleep can view the trend to improve sleep, and through the vibration alarm clock wake you quietly; Notification Remind: intelligent notification be clear at a glance, convenient and timely access to telephone, SMS, and all kinds of social information. Through touch button began to ring view information content. Sedentary reminder, remind you to leave the seat for just the right amount of exercise; Anti-lost and Remote: When the smart phone is beyond the Bluetooth range(5m), the device vibrates to remind. Operation on the screen could control remote photography shooting. Some Specification Model: ID115 CPU: Nordic Sensor: kionix Working Temperature:-10℃--45℃ Charging time: About 1.5 hours Standby: more than seven days Product weight: 18g Band material: TPE Strap size: 240 x 16 x 10 mm Charging Port: USB charge Working Voltage: 3.6~4.2 V Case Material: Plastic Screen Size:0.86 inch OLED screen Battery Capacity and Battery Type: 50mAh Polymer Rechargeable Li Battery Anti-dust and Waterproof rating: IP 67 Life-level waterproof, sweat-proof, rain-proof, but do not wear it when you are showering and swimming.