The busy work and too much socializing let many people complain about the lack of exercise , body shape and physical worse. In fact, the work of leisure time, even some simple walking can burn fat and energy.L28-C can track every step you take, let you watch your energy nad calories in ordinary life,walking , climbing stairs consumption. Feature: A top-level configuration chip, the chip technology , enhance the bracelet perpormance, let you and the world to keep pace with the times, became a new generation of technology Master； How long do you sleep wear, monitoring the sleep quality of sleep,improve your bad work and rest, sleep a good sleep, let you refreshed vitality, every day. Timing alarm clock, will remind timing on the 9:00, 12:00, 16:00, 20:00 motion, both regular medicine, sports and other kinds of plan regulary reminded , do not disturb others. Bluetooth 4 technology, low power intelligent bracelet, 2 hours can be filled with, for 250 hour long standby； Product Description 1.This is a smart sports wristbands, built a variety of sensors, it can calculate the number of running your calorie consumption, mileage 2.Bluetooth 4.0 technology, connect your phone via Bluetooth APP synchronize data and settings 3.OLED display screen, no backlight, more power, viewing angle, light weight 4.built-in high-performance battery, working time 5-7 hours 5.PU belts, red and black,App for iPhone 6.Sleep mode can record your sleep, sleep efficiency analysis, alerts can be set according to your motion alarm reminders and sleep