Hello, everyone. I used this device for 5 months . This device has got some serious problems . I faced many problems while using this device . It is very uncomfortable in hands . Nobody can wear it for long time. This is very costly device and unexpected high price. This device dont have any features. Design of the device is ok. It is not user friendly. Battery backup of the device is poor . It need to be charge for long time . And gets discharge in no time.