USB LED Smart Wrist Band Watches, Brand Name : Firstsing

We are offering usb led smart wrist band watches.
Highlights
app download here:
built-in 3d acceleration sensor with high sensitivity, can catch your each small action, making more accurate pedometer.
It can trace your burning calories, movement steps, movement distance, and also could set and inquire the complete of moving goal.
With temperature display function, easy for the users to know the environment temperature which heshe stayed in.
Strap integrates usb interface, plug and play.
With the function of exercise date memory, it could view the record amount of movement data by connecting the computer.
Timedate display, adjust the time with computer synchronization.
Intelligent sleeping monitoring, easy for the users to know or improve the sleeping quality.
Usb rechargeable watch, built-in rechargeable battery, it could be charging and data exchanging by connecting to the computer.
Small and light body, simple and fashionable, design of circular arc for wrist, more comfortable to wear.
Specification
display screen: led screen
interface type: usb port
step count accuracy: ±5%
time error :24h error(the software can adjust the rage ±99 secsday)
data memory :can be stored about 120 hours step counter data in a row.
Display of steps :0 step ~ 9999steps
battery life: rechargeable battery,charge-discharge times>300times
supply voltage :dc=5v
run barometric pressure: 860 hpa ~ 1060 hpa
operating temperature :0 to 45 degrees centigrade
boundary dimension :255mmx22mmx9mm(specific please in kind prevail)
weight: 26g (net weight)